From 5076bef3060f1d78b2456539142deeec5331e259 Mon Sep 17 00:00:00 2001 From: haad Date: Mon, 18 Nov 2019 11:49:23 +0200 Subject: [PATCH] Improve entry fetching algorithm Fix tests Clean up code Improve loading visualization Increase browser tests timeout Use await in entry-io --- .gitignore | 1 + Makefile | 1 + benchmarks/benchmark-append.js | 2 +- benchmarks/benchmark-join2.js | 16 +- dist/ipfslog.min.js | 14 +- examples/browser/loader-visualization.html | 107 ++--- lib/es5/entry-io.js | 445 +++++++++++++-------- lib/es5/lamport-clock.js | 2 +- lib/es5/log-io.js | 135 +++---- lib/es5/log.js | 281 ++++++------- package.json | 2 +- src/entry-io.js | 172 ++++---- src/log-io.js | 88 ++-- src/log.js | 129 ++---- test/log-load.spec.js | 16 +- 15 files changed, 697 insertions(+), 714 deletions(-) diff --git a/.gitignore b/.gitignore index 73aba241..3229a7aa 100644 --- a/.gitignore +++ b/.gitignore @@ -2,6 +2,7 @@ node_modules/ coverage/ ipfs/ ipfs-log/ +orbitdb/ dist/*.js.map examples/browser/bundle.js test/keystore/ diff --git a/Makefile b/Makefile index ea4083ae..bab0e2b8 100644 --- a/Makefile +++ b/Makefile @@ -15,6 +15,7 @@ build: test clean: rm -rf ipfs/ rm -rf ipfs-log-benchmarks/ + rm -rf orbitdb/ rm -rf node_modules/ rm -rf coverage/ rm -rf test/keystore/ diff --git a/benchmarks/benchmark-append.js b/benchmarks/benchmark-append.js index 1d41c814..8a048538 100644 --- a/benchmarks/benchmark-append.js +++ b/benchmarks/benchmark-append.js @@ -56,7 +56,7 @@ let run = (() => { // const memstore = new MemStore() // ipfs.dag.put = memstore.put.bind(memstore) // ipfs.dag.get = memstore.get.bind(memstore) - const signingKeysPath = './benchmarks/ipfs-log-benchmarks/keys1' + const signingKeysPath = './test/fixtures/keys/signing-keys' const store = await storage.createStore(signingKeysPath) const keystore = new Keystore(store) const identity = await IdentityProvider.createIdentity({ id: 'userA', keystore }) diff --git a/benchmarks/benchmark-join2.js b/benchmarks/benchmark-join2.js index cc237ca7..303ede0b 100644 --- a/benchmarks/benchmark-join2.js +++ b/benchmarks/benchmark-join2.js @@ -9,6 +9,7 @@ const Keystore = require('orbit-db-keystore') const leveldown = require('leveldown') const storage = require('orbit-db-storage-adapter')(leveldown) + // State let ipfs let log1, log2 @@ -60,14 +61,11 @@ let run = (() => { // ipfs.dag.put = memstore.put.bind(memstore) // ipfs.dag.get = memstore.get.bind(memstore) - const signingKeysPath1 = './benchmarks/ipfs-log-benchmarks/keys1' - const signingKeysPath2 = './benchmarks/ipfs-log-benchmarks/keys2' - const store1 = await storage.createStore(signingKeysPath1) - const store2 = await storage.createStore(signingKeysPath2) - const keystore1 = new Keystore(store1) - const keystore2 = new Keystore(store2) - const identity = await IdentityProvider.createIdentity({ id: 'userA', keystore: keystore1 }) - const identity2 = await IdentityProvider.createIdentity({ id: 'userB', keystore: keystore2 }) + const signingKeysPath = './test/fixtures/keys/signing-keys' + const store = await storage.createStore(signingKeysPath) + const keystore = new Keystore(store) + const identity = await IdentityProvider.createIdentity({ id: 'userA', keystore }) + const identity2 = await IdentityProvider.createIdentity({ id: 'userB', keystore }) log1 = new Log(ipfs, identity, { logId: 'A' }) log2 = new Log(ipfs, identity2, { logId: 'A' }) @@ -97,7 +95,7 @@ let run = (() => { console.log('Entry size:', Buffer.from(JSON.stringify(l2.heads)).length, 'bytes') // console.log(log2.heads) console.log('log length:', log2.values.length) - console.log(log2.values.map(e => e.payload)) + // console.log(log2.values.map(e => e.payload)) }) })() diff --git a/dist/ipfslog.min.js b/dist/ipfslog.min.js index 1d95e628..6ad1d2d8 100644 --- a/dist/ipfslog.min.js +++ b/dist/ipfslog.min.js @@ -1,25 +1,25 @@ -var Log=function(e){var t={};function n(r){if(t[r])return t[r].exports;var i=t[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,n),i.l=!0,i.exports}return n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)n.d(r,i,function(t){return e[t]}.bind(null,i));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=26)}([function(e,t,n){"use strict";(function(e){ +var Log=function(e){var t={};function n(r){if(t[r])return t[r].exports;var i=t[r]={i:r,l:!1,exports:{}};return e[r].call(i.exports,i,i.exports,n),i.l=!0,i.exports}return n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)n.d(r,i,function(t){return e[t]}.bind(null,i));return r},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=28)}([function(e,t,n){"use strict";(function(e){ /*! * The buffer module from node.js, for the browser. * - 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this._json||(this._json=Object.freeze({name:this.Name,size:this.Tsize,cid:this.Hash.toBaseEncodedString()})),Object.assign({},this._json)}get Name(){return this._name}get nameAsBuffer(){return null!==this._nameBuf?this._nameBuf:(this._nameBuf=t.from(this._name),this._nameBuf)}set Name(e){throw new Error("Can't set property: 'name' is immutable")}get Tsize(){return this._size}set Tsize(e){throw new Error("Can't set property: 'size' is immutable")}get Hash(){return this._cid}set Hash(e){throw new Error("Can't set property: 'cid' is immutable")}},{className:"DAGLink",symbolName:"@ipld/js-ipld-dag-pb/daglink"})).util=n(71)}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(t){const r=n(13),i=n(41),o=n(19),s=n(14),a=n(51);class f{constructor(e,n,s,a){if(c.isCID(e)){const n=e;return this.version=n.version,this.codec=n.codec,this.multihash=t.from(n.multihash),void(this.multibaseName=n.multibaseName||(0===n.version?"base58btc":"base32"))}if("string"==typeof e){const t=i.isEncoded(e);if(t){const n=i.decode(e);this.version=parseInt(n.slice(0,1).toString("hex"),16),this.codec=o.getCodec(n.slice(1)),this.multihash=o.rmPrefix(n.slice(1)),this.multibaseName=t}else this.version=0,this.codec="dag-pb",this.multihash=r.fromB58String(e),this.multibaseName="base58btc";return f.validateCID(this),void Object.defineProperty(this,"string",{value:e})}if(t.isBuffer(e)){const t=e.slice(0,1),n=parseInt(t.toString("hex"),16);if(1===n){const t=e;this.version=n,this.codec=o.getCodec(t.slice(1)),this.multihash=o.rmPrefix(t.slice(1)),this.multibaseName="base32"}else this.version=0,this.codec="dag-pb",this.multihash=e,this.multibaseName="base58btc";f.validateCID(this)}else this.version=e,this.codec=n,this.multihash=s,this.multibaseName=a||(0===e?"base58btc":"base32"),f.validateCID(this)}get buffer(){let e=this._buffer;if(!e){if(0===this.version)e=this.multihash;else{if(1!==this.version)throw new Error("unsupported version");e=t.concat([t.from("01","hex"),o.getCodeVarint(this.codec),this.multihash])}Object.defineProperty(this,"_buffer",{value:e})}return e}get prefix(){return t.concat([t.from(`0${this.version}`,"hex"),o.getCodeVarint(this.codec),r.prefix(this.multihash)])}toV0(){if("dag-pb"!==this.codec)throw new Error("Cannot convert a non dag-pb CID to CIDv0");const{name:e,length:t}=r.decode(this.multihash);if("sha2-256"!==e)throw new Error("Cannot convert non sha2-256 multihash CID to CIDv0");if(32!==t)throw new Error("Cannot convert non 32 byte multihash CID to CIDv0");return new c(0,this.codec,this.multihash)}toV1(){return new c(1,this.codec,this.multihash)}toBaseEncodedString(e=this.multibaseName){if(this.string&&e===this.multibaseName)return this.string;let t=null;if(0===this.version){if("base58btc"!==e)throw new Error("not supported with CIDv0, to support different bases, please migrate the instance do CIDv1, you can do that through cid.toV1()");t=r.toB58String(this.multihash)}else{if(1!==this.version)throw new Error("unsupported version");t=i.encode(e,this.buffer).toString()}return e===this.multibaseName&&Object.defineProperty(this,"string",{value:t}),t}toString(e){return this.toBaseEncodedString(e)}toJSON(){return{codec:this.codec,version:this.version,hash:this.multihash}}equals(e){return this.codec===e.codec&&this.version===e.version&&this.multihash.equals(e.multihash)}static validateCID(e){let t=a.checkCIDComponents(e);if(t)throw new Error(t)}}const c=n(15)(f,{className:"CID",symbolName:"@ipld/js-cid/CID"});c.codecs=s,e.exports=c}).call(this,n(0).Buffer)},function(e,t,n){"use strict";class r{constructor(e,t){this.id=e,this.time=t||0}tick(){return new r(this.id,++this.time)}merge(e){return this.time=Math.max(this.time,e.time),new r(this.id,this.time)}clone(){return new r(this.id,this.time)}static compare(e,t){var n=e.time-t.time;return 0===n&&e.id!==t.id?e.id{s(this,e.Name,t)})}toJSON(){return this._json||(this._json=Object.freeze({data:this.Data,links:this._links.map(e=>e.toJSON()),size:this.size})),Object.assign({},this._json)}toString(){return`DAGNode `}get size(){return void 0===this._size&&(this._size=this._links.reduce((e,t)=>e+t.Tsize,this._serializedSize)),this._size}set size(e){throw new Error("Can't set property: 'size' is immutable")}get Data(){return this._data}set Data(e){throw new Error("Can't set property: 'Data' is immutable")}get Links(){return this._links.map(e=>({Name:e.Name,Tsize:e.Tsize,Hash:e.Hash}))}set Links(e){throw new Error("Can't set property: 'Links' is immutable")}},{className:"DAGNode",symbolName:"@ipld/js-ipld-dag-pb/dagnode"})).create=n(7),t.clone=n(85),t.addLink=n(86),t.rmLink=n(87)}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(t){const r=n(58),{serialize:i}=n(8),o=n(9).linkSort,s=n(6),a=n(3);e.exports=(e,n=[])=>{if("string"==typeof e&&(e=t.from(e)),!t.isBuffer(e))throw new Error("Passed 'data' is not a buffer or a string!");n=n.map(e=>a.isDAGLink(e)?e:a.util.createDagLinkFromB58EncodedHash(e)),n=r(n,o);const f=i({Data:e,Links:n});return new s(e,n,f.length)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(r){const i=n(4),o=n(59)(n(70)),s=n(3),a=n(6),f=n(19),c=n(72);(t=e.exports).codec=f.DAG_PB,t.defaultHashAlg=f.SHA2_256;t.serialize=e=>{let t=e.Data,n=e.Links||[];return!a.isDAGNode(e)&&n&&(n=n.map(e=>s.isDAGLink(e)?e:s.util.createDagLinkFromB58EncodedHash(e))),o.PBNode.encode(function(e){const t={};e.Data&&e.Data.length>0?t.Data=e.Data:t.Data=null;e.Links&&e.Links.length>0?t.Links=e.Links.map(e=>({Hash:e.Hash.buffer,Name:e.Name,Tsize:e.Tsize})):t.Links=null;return t}({Data:t,Links:n}))},t.deserialize=e=>{const t=o.PBNode.decode(e),n=t.Links.map(e=>new s(e.Name,e.Tsize,e.Hash)),i=null==t.Data?r.alloc(0):t.Data;return new a(i,n,e.length)},t.cid=async(e,n)=>{const r={cidVersion:1,hashAlg:t.defaultHashAlg},o=Object.assign(r,n),s=await c(e,o.hashAlg),a=f.print[t.codec];return new i(o.cidVersion,a,s)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(r){const i=n(3),{cid:o,serialize:s}=n(8);(t=e.exports).cloneData=function(e){let t;return e.Data&&e.Data.length>0?(t=r.alloc(e.Data.length),e.Data.copy(t)):t=r.alloc(0),t},t.cloneLinks=function(e){return e.Links.slice()},t.linkSort=function(e,t){return r.compare(e.nameAsBuffer,t.nameAsBuffer)},t.toDAGLink=async(e,t={})=>{const n=s(e),r=await o(n);return new i(t.name||"",n.length,r)}}).call(this,n(0).Buffer)},function(e,t){var n;n=function(){return this}();try{n=n||new Function("return this")()}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";(function(t){const r=n(5),{isDefined:i,io:o}=n(12),s=n(89),a=["next"],f=()=>new Error("Ipfs instance not defined"),c={0:"dag-pb",1:"dag-cbor"};class u{static async create(e,t,n,o,s=[],a,c=[]){if(!i(e))throw f();if(!i(t))throw new Error("Identity is required, cannot create entry");if(!i(n))throw new Error("Entry requires an 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n={hash:null,id:t.id,payload:t.payload,next:t.next,refs:t.refs,v:t.v,clock:t.clock};return t.key&&Object.assign(n,{key:t.key}),t.identity&&Object.assign(n,{identity:t.identity}),t.sig&&Object.assign(n,{sig:t.sig}),o.write(e,c[n.v],n,{links:a})}static async fromMultihash(e,t){if(!e)throw f();if(!t)throw new Error(`Invalid hash: ${t}`);const n=await o.read(e,t,{links:a});let i={hash:t,id:n.id,payload:n.payload,next:n.next,refs:n.refs,v:n.v,clock:new r(n.clock.id,n.clock.time)};return n.key&&Object.assign(i,{key:n.key}),n.identity&&Object.assign(i,{identity:n.identity}),n.sig&&Object.assign(i,{sig:n.sig}),i}static isEntry(e){return e&&void 0!==e.id&&void 0!==e.next&&void 0!==e.payload&&void 0!==e.v&&void 0!==e.hash&&void 0!==e.clock}static compare(e,t){var n=r.compare(e.clock,t.clock);return 0===n?e.clock.id-1}static findChildren(e,t){for(var n=[],r=t.find(t=>u.isParent(e,t)),i=e;r;)n.push(r),i=r,r=t.find(e=>u.isParent(i,e));return n=n.sort((e,t)=>e.clock.time>t.clock.time)}}e.exports=u}).call(this,n(0).Buffer)},function(e,t,n){"use strict";const r=n(32),i=n(33),o=n(34),s=n(35);e.exports={difference:r,findUniques:i,isDefined:o,io:s}},function(e,t,n){"use strict";(function(e){const r=n(36),i=n(37);t.names=i.names,t.codes=i.codes,t.defaultLengths=i.defaultLengths;const o=n(1);function s(e){t.decode(e)}t.toHexString=function(t){if(!e.isBuffer(t))throw new Error("must be passed a buffer");return t.toString("hex")},t.fromHexString=function(t){return e.from(t,"hex")},t.toB58String=function(t){if(!e.isBuffer(t))throw new Error("must be passed a buffer");return r.encode(t)},t.fromB58String=function(t){let n=t;return e.isBuffer(t)&&(n=t.toString()),e.from(r.decode(n))},t.decode=function(n){if(!e.isBuffer(n))throw new Error("multihash must be a Buffer");if(n.length<3)throw new Error("multihash too short. must be > 3 bytes.");const r=o.decode(n);if(!t.isValidCode(r))throw new Error(`multihash unknown function code: 0x${r.toString(16)}`);n=n.slice(o.decode.bytes);const s=o.decode(n);if(s<1)throw new Error(`multihash invalid length: 0x${s.toString(16)}`);if((n=n.slice(o.decode.bytes)).length!==s)throw new Error(`multihash length inconsistent: 0x${n.toString("hex")}`);return{code:r,name:i.codes[r],length:s,digest:n}},t.encode=function(n,r,i){if(!n||void 0===r)throw new Error("multihash encode requires at least two args: digest, code");const s=t.coerceCode(r);if(!e.isBuffer(n))throw new Error("digest should be a Buffer");if(null==i&&(i=n.length),i&&n.length!==i)throw new Error("digest length should be equal to specified length.");return e.concat([e.from(o.encode(s)),e.from(o.encode(i)),n])},t.coerceCode=function(e){let n=e;if("string"==typeof e){if(void 0===i.names[e])throw new Error(`Unrecognized hash function named: ${e}`);n=i.names[e]}if("number"!=typeof n)throw new Error(`Hash function code should be a number. 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this._json||(this._json=Object.freeze({name:this.Name,size:this.Tsize,cid:this.Hash.toBaseEncodedString()})),Object.assign({},this._json)}get Name(){return this._name}get nameAsBuffer(){return null!==this._nameBuf?this._nameBuf:(this._nameBuf=t.from(this._name),this._nameBuf)}set Name(e){throw new Error("Can't set property: 'name' is immutable")}get Tsize(){return this._size}set Tsize(e){throw new Error("Can't set property: 'size' is immutable")}get Hash(){return this._cid}set Hash(e){throw new Error("Can't set property: 'cid' is immutable")}},{className:"DAGLink",symbolName:"@ipld/js-ipld-dag-pb/daglink"})).util=n(72)}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(t){const r=n(13),i=n(42),o=n(20),s=n(14),a=n(52);class f{constructor(e,n,s,a){if(c.isCID(e)){const n=e;return this.version=n.version,this.codec=n.codec,this.multihash=t.from(n.multihash),void(this.multibaseName=n.multibaseName||(0===n.version?"base58btc":"base32"))}if("string"==typeof e){const 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t={};e.Data&&e.Data.length>0?t.Data=e.Data:t.Data=null;e.Links&&e.Links.length>0?t.Links=e.Links.map(e=>({Hash:e.Hash.buffer,Name:e.Name,Tsize:e.Tsize})):t.Links=null;return t}({Data:t,Links:n}))},t.deserialize=e=>{const t=o.PBNode.decode(e),n=t.Links.map(e=>new s(e.Name,e.Tsize,e.Hash)),i=null==t.Data?r.alloc(0):t.Data;return new a(i,n,e.length)},t.cid=async(e,n)=>{const r={cidVersion:1,hashAlg:t.defaultHashAlg},o=Object.assign(r,n),s=await c(e,o.hashAlg),a=f.print[t.codec];return new i(o.cidVersion,a,s)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(r){const i=n(3),{cid:o,serialize:s}=n(8);(t=e.exports).cloneData=function(e){let t;return e.Data&&e.Data.length>0?(t=r.alloc(e.Data.length),e.Data.copy(t)):t=r.alloc(0),t},t.cloneLinks=function(e){return e.Links.slice()},t.linkSort=function(e,t){return r.compare(e.nameAsBuffer,t.nameAsBuffer)},t.toDAGLink=async(e,t={})=>{const n=s(e),r=await o(n);return new i(t.name||"",n.length,r)}}).call(this,n(0).Buffer)},function(e,t){var n;n=function(){return this}();try{n=n||new Function("return this")()}catch(e){"object"==typeof window&&(n=window)}e.exports=n},function(e,t,n){"use strict";(function(t){const r=n(5),{isDefined:i,io:o}=n(12),s=n(90),a=["next"],f=()=>new Error("Ipfs instance not defined"),c={0:"dag-pb",1:"dag-cbor"};class u{static async create(e,t,n,o,s=[],a,c=[]){if(!i(e))throw f();if(!i(t))throw new Error("Identity is required, cannot create entry");if(!i(n))throw new Error("Entry requires an id");if(!i(o))throw new Error("Entry requires data");if(!i(s)||!Array.isArray(s))throw new Error("'next' argument is not an array");const h={hash:null,id:n,payload:o,next:s.filter(i).map(e=>e.hash?e.hash:e),refs:c,v:1,clock:a||new r(t.publicKey)},l=await t.provider.sign(t,u.toBuffer(h));return h.key=t.publicKey,h.identity=t.toJSON(),h.sig=l,h.hash=await u.toMultihash(e,h),h}static async verify(e,t){if(!e)throw new Error("Identity-provider is 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i={hash:t,id:n.id,payload:n.payload,next:n.next,refs:n.refs,v:n.v,clock:new r(n.clock.id,n.clock.time)};return n.key&&Object.assign(i,{key:n.key}),n.identity&&Object.assign(i,{identity:n.identity}),n.sig&&Object.assign(i,{sig:n.sig}),i}static isEntry(e){return e&&void 0!==e.id&&void 0!==e.next&&void 0!==e.payload&&void 0!==e.v&&void 0!==e.hash&&void 0!==e.clock}static compare(e,t){var n=r.compare(e.clock,t.clock);return 0===n?e.clock.id-1}static findChildren(e,t){for(var n=[],r=t.find(t=>u.isParent(e,t)),i=e;r;)n.push(r),i=r,r=t.find(e=>u.isParent(i,e));return n=n.sort((e,t)=>e.clock.time>t.clock.time)}}e.exports=u}).call(this,n(0).Buffer)},function(e,t,n){"use strict";const r=n(33),i=n(34),o=n(35),s=n(36);e.exports={difference:r,findUniques:i,isDefined:o,io:s}},function(e,t,n){"use strict";(function(e){const r=n(37),i=n(38);t.names=i.names,t.codes=i.codes,t.defaultLengths=i.defaultLengths;const o=n(1);function s(e){t.decode(e)}t.toHexString=function(t){if(!e.isBuffer(t))throw new 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n=this.encode(t),r=0;r>2]|=this.padding[3&t],this.lastByteIndex===this.byteCount)for(e[0]=e[n],t=1;t>4&15]+b[15&e]+b[e>>12&15]+b[e>>8&15]+b[e>>20&15]+b[e>>16&15]+b[e>>28&15]+b[e>>24&15];s%t==0&&(U(n),o=0)}return i&&(e=n[o],a+=b[e>>4&15]+b[15&e],i>1&&(a+=b[e>>12&15]+b[e>>8&15]),i>2&&(a+=b[e>>20&15]+b[e>>16&15])),a},C.prototype.arrayBuffer=function(){this.finalize();var e,t=this.blockCount,n=this.s,r=this.outputBlocks,i=this.extraBytes,o=0,s=0,a=this.outputBits>>3;e=i?new ArrayBuffer(r+1<<2):new ArrayBuffer(a);for(var f=new Uint32Array(e);s>8&255,f[e+2]=t>>16&255,f[e+3]=t>>24&255;a%n==0&&U(r)}return o&&(e=a<<2,t=r[s],f[e]=255&t,o>1&&(f[e+1]=t>>8&255),o>2&&(f[e+2]=t>>16&255)),f},D.prototype=new C,D.prototype.finalize=function(){return this.encode(this.outputBits,!0),C.prototype.finalize.call(this)};var U=function(e){var t,n,r,i,o,s,a,f,c,u,h,l,b,k,d,m,g,S,y,E,x,w,v,_,A,I,N,B,K,O,L,T,P,j,C,D,U,R,M,z,H,F,q,Y,G,J,$,V,W,X,Z,Q,ee,te,ne,re,ie,oe,se,ae,fe,ce,ue;for(r=0;r<48;r+=2)i=e[0]^e[10]^e[20]^e[30]^e[40],o=e[1]^e[11]^e[21]^e[31]^e[41],s=e[2]^e[12]^e[22]^e[32]^e[42],a=e[3]^e[13]^e[23]^e[33]^e[43],f=e[4]^e[14]^e[24]^e[34]^e[44],c=e[5]^e[15]^e[25]^e[35]^e[45],u=e[6]^e[16]^e[26]^e[36]^e[46],h=e[7]^e[17]^e[27]^e[37]^e[47],t=(l=e[8]^e[18]^e[28]^e[38]^e[48])^(s<<1|a>>>31),n=(b=e[9]^e[19]^e[29]^e[39]^e[49])^(a<<1|s>>>31),e[0]^=t,e[1]^=n,e[10]^=t,e[11]^=n,e[20]^=t,e[21]^=n,e[30]^=t,e[31]^=n,e[40]^=t,e[41]^=n,t=i^(f<<1|c>>>31),n=o^(c<<1|f>>>31),e[2]^=t,e[3]^=n,e[12]^=t,e[13]^=n,e[22]^=t,e[23]^=n,e[32]^=t,e[33]^=n,e[42]^=t,e[43]^=n,t=s^(u<<1|h>>>31),n=a^(h<<1|u>>>31),e[4]^=t,e[5]^=n,e[14]^=t,e[15]^=n,e[24]^=t,e[25]^=n,e[34]^=t,e[35]^=n,e[44]^=t,e[45]^=n,t=f^(l<<1|b>>>31),n=c^(b<<1|l>>>31),e[6]^=t,e[7]^=n,e[16]^=t,e[17]^=n,e[26]^=t,e[27]^=n,e[36]^=t,e[37]^=n,e[46]^=t,e[47]^=n,t=u^(i<<1|o>>>31),n=h^(o<<1|i>>>31),e[8]^=t,e[9]^=n,e[18]^=t,e[19]^=n,e[28]^=t,e[29]^=n,e[38]^=t,e[39]^=n,e[48]^=t,e[49]^=n,k=e[0],d=e[1],J=e[11]<<4|e[10]>>>28,$=e[10]<<4|e[11]>>>28,B=e[20]<<3|e[21]>>>29,K=e[21]<<3|e[20]>>>29,ae=e[31]<<9|e[30]>>>23,fe=e[30]<<9|e[31]>>>23,F=e[40]<<18|e[41]>>>14,q=e[41]<<18|e[40]>>>14,j=e[2]<<1|e[3]>>>31,C=e[3]<<1|e[2]>>>31,m=e[13]<<12|e[12]>>>20,g=e[12]<<12|e[13]>>>20,V=e[22]<<10|e[23]>>>22,W=e[23]<<10|e[22]>>>22,O=e[33]<<13|e[32]>>>19,L=e[32]<<13|e[33]>>>19,ce=e[42]<<2|e[43]>>>30,ue=e[43]<<2|e[42]>>>30,te=e[5]<<30|e[4]>>>2,ne=e[4]<<30|e[5]>>>2,D=e[14]<<6|e[15]>>>26,U=e[15]<<6|e[14]>>>26,S=e[25]<<11|e[24]>>>21,y=e[24]<<11|e[25]>>>21,X=e[34]<<15|e[35]>>>17,Z=e[35]<<15|e[34]>>>17,T=e[45]<<29|e[44]>>>3,P=e[44]<<29|e[45]>>>3,_=e[6]<<28|e[7]>>>4,A=e[7]<<28|e[6]>>>4,re=e[17]<<23|e[16]>>>9,ie=e[16]<<23|e[17]>>>9,R=e[26]<<25|e[27]>>>7,M=e[27]<<25|e[26]>>>7,E=e[36]<<21|e[37]>>>11,x=e[37]<<21|e[36]>>>11,Q=e[47]<<24|e[46]>>>8,ee=e[46]<<24|e[47]>>>8,Y=e[8]<<27|e[9]>>>5,G=e[9]<<27|e[8]>>>5,I=e[18]<<20|e[19]>>>12,N=e[19]<<20|e[18]>>>12,oe=e[29]<<7|e[28]>>>25,se=e[28]<<7|e[29]>>>25,z=e[38]<<8|e[39]>>>24,H=e[39]<<8|e[38]>>>24,w=e[48]<<14|e[49]>>>18,v=e[49]<<14|e[48]>>>18,e[0]=k^~m&S,e[1]=d^~g&y,e[10]=_^~I&B,e[11]=A^~N&K,e[20]=j^~D&R,e[21]=C^~U&M,e[30]=Y^~J&V,e[31]=G^~$&W,e[40]=te^~re&oe,e[41]=ne^~ie&se,e[2]=m^~S&E,e[3]=g^~y&x,e[12]=I^~B&O,e[13]=N^~K&L,e[22]=D^~R&z,e[23]=U^~M&H,e[32]=J^~V&X,e[33]=$^~W&Z,e[42]=re^~oe&ae,e[43]=ie^~se&fe,e[4]=S^~E&w,e[5]=y^~x&v,e[14]=B^~O&T,e[15]=K^~L&P,e[24]=R^~z&F,e[25]=M^~H&q,e[34]=V^~X&Q,e[35]=W^~Z&ee,e[44]=oe^~ae&ce,e[45]=se^~fe&ue,e[6]=E^~w&k,e[7]=x^~v&d,e[16]=O^~T&_,e[17]=L^~P&A,e[26]=z^~F&j,e[27]=H^~q&C,e[36]=X^~Q&Y,e[37]=Z^~ee&G,e[46]=ae^~ce&te,e[47]=fe^~ue&ne,e[8]=w^~k&m,e[9]=v^~d&g,e[18]=T^~_&I,e[19]=P^~A&N,e[28]=F^~j&D,e[29]=q^~C&U,e[38]=Q^~Y&J,e[39]=ee^~G&$,e[48]=ce^~te&re,e[49]=ue^~ne&ie,e[0]^=p[r],e[1]^=p[r+1]};if(u)e.exports=N;else{for(K=0;K255)return!1;return!0}function s(e,t){return(65535&e)*t+(((e>>>16)*t&65535)<<16)}function a(e,t){return e<>>32-t}function f(e){return e=s(e^=e>>>16,2246822507),e=s(e^=e>>>13,3266489909),e^=e>>>16}function c(e,t){e=[e[0]>>>16,65535&e[0],e[1]>>>16,65535&e[1]],t=[t[0]>>>16,65535&t[0],t[1]>>>16,65535&t[1]];var n=[0,0,0,0];return n[3]+=e[3]+t[3],n[2]+=n[3]>>>16,n[3]&=65535,n[2]+=e[2]+t[2],n[1]+=n[2]>>>16,n[2]&=65535,n[1]+=e[1]+t[1],n[0]+=n[1]>>>16,n[1]&=65535,n[0]+=e[0]+t[0],n[0]&=65535,[n[0]<<16|n[1],n[2]<<16|n[3]]}function u(e,t){e=[e[0]>>>16,65535&e[0],e[1]>>>16,65535&e[1]],t=[t[0]>>>16,65535&t[0],t[1]>>>16,65535&t[1]];var n=[0,0,0,0];return n[3]+=e[3]*t[3],n[2]+=n[3]>>>16,n[3]&=65535,n[2]+=e[2]*t[3],n[1]+=n[2]>>>16,n[2]&=65535,n[2]+=e[3]*t[2],n[1]+=n[2]>>>16,n[2]&=65535,n[1]+=e[1]*t[3],n[0]+=n[1]>>>16,n[1]&=65535,n[1]+=e[2]*t[2],n[0]+=n[1]>>>16,n[1]&=65535,n[1]+=e[3]*t[1],n[0]+=n[1]>>>16,n[1]&=65535,n[0]+=e[0]*t[3]+e[1]*t[2]+e[2]*t[1]+e[3]*t[0],n[0]&=65535,[n[0]<<16|n[1],n[2]<<16|n[3]]}function h(e,t){return 32===(t%=64)?[e[1],e[0]]:t<32?[e[0]<>>32-t,e[1]<>>32-t]:(t-=32,[e[1]<>>32-t,e[0]<>>32-t])}function l(e,t){return 0===(t%=64)?e:t<32?[e[0]<>>32-t,e[1]<>>1]),e=b(e=u(e,[4283543511,3981806797]),[0,e[0]>>>1]),e=b(e=u(e,[3301882366,444984403]),[0,e[0]>>>1])}i.x86.hash32=function(e,t){if(!i.inputValidation||o(e)){t=t||0;for(var n=e.length%4,r=e.length-n,c=t,u=0,h=3432918353,l=461845907,b=0;b>>0}},i.x86.hash128=function(e,t){if(!i.inputValidation||o(e)){t=t||0;for(var n=e.length%16,r=e.length-n,c=t,u=t,h=t,l=t,b=0,k=0,d=0,p=0,m=597399067,g=2869860233,S=951274213,y=2716044179,E=0;E>>0).toString(16)).slice(-8)+("00000000"+(u>>>0).toString(16)).slice(-8)+("00000000"+(h>>>0).toString(16)).slice(-8)+("00000000"+(l>>>0).toString(16)).slice(-8)}},i.x64.hash128=function(e,t){if(!i.inputValidation||o(e)){t=t||0;for(var n=e.length%16,r=e.length-n,s=[0,t],a=[0,t],f=[0,0],d=[0,0],p=[2277735313,289559509],m=[1291169091,658871167],g=0;g>>0).toString(16)).slice(-8)+("00000000"+(s[1]>>>0).toString(16)).slice(-8)+("00000000"+(a[0]>>>0).toString(16)).slice(-8)+("00000000"+(a[1]>>>0).toString(16)).slice(-8)}},e.exports&&(t=e.exports=i),t.murmurHash3=i}()},function(e,t,n){"use strict";const{Buffer:r}=n(0),i=self.crypto||self.msCrypto;e.exports=e=>{if("undefined"==typeof self||!self.crypto&&!self.msCrypto)throw new Error("Please use a browser with webcrypto support and ensure the code has been delivered securely via HTTPS/TLS and run within a Secure Context");return async t=>{switch(e){case"sha1":return r.from(await i.subtle.digest({name:"SHA-1"},t));case"sha2-256":return r.from(await i.subtle.digest({name:"SHA-256"},t));case"sha2-512":return r.from(await i.subtle.digest({name:"SHA-512"},t));case"dbl-sha2-256":{const e=await i.subtle.digest({name:"SHA-256"},t);return r.from(await i.subtle.digest({name:"SHA-256"},e))}default:throw new Error(`${e} is not a supported algorithm`)}}}},function(e,t,n){"use strict";const{Buffer:r}=n(0);e.exports={fromNumberTo32BitBuf:e=>{const t=new Array(4);for(let n=0;n<4;n++)t[n]=255&e,e>>=8;return r.from(t)}}},function(e,t,n){"use strict";const{Buffer:r}=n(0),i=n(82),o={init:i.blake2bInit,update:i.blake2bUpdate,digest:i.blake2bFinal},s={init:i.blake2sInit,update:i.blake2sUpdate,digest:i.blake2sFinal},a=(e,t)=>async n=>{const i=t.init(e,null);return t.update(i,n),r.from(t.digest(i))};e.exports=e=>{for(let t=0;t<64;t++)e[45569+t]=a(t+1,o);for(let t=0;t<32;t++)e[45633+t]=a(t+1,s)}},function(e,t,n){var r=n(83),i=n(84);e.exports={blake2b:r.blake2b,blake2bHex:r.blake2bHex,blake2bInit:r.blake2bInit,blake2bUpdate:r.blake2bUpdate,blake2bFinal:r.blake2bFinal,blake2s:i.blake2s,blake2sHex:i.blake2sHex,blake2sInit:i.blake2sInit,blake2sUpdate:i.blake2sUpdate,blake2sFinal:i.blake2sFinal}},function(e,t,n){var r=n(24);function i(e,t,n){var r=e[t]+e[n],i=e[t+1]+e[n+1];r>=4294967296&&i++,e[t]=r,e[t+1]=i}function o(e,t,n,r){var i=e[t]+n;n<0&&(i+=4294967296);var o=e[t+1]+r;i>=4294967296&&o++,e[t]=i,e[t+1]=o}function s(e,t){return e[t]^e[t+1]<<8^e[t+2]<<16^e[t+3]<<24}function a(e,t,n,r,s,a){var f=h[s],c=h[s+1],l=h[a],b=h[a+1];i(u,e,t),o(u,e,f,c);var k=u[r]^u[e],d=u[r+1]^u[e+1];u[r]=d,u[r+1]=k,i(u,n,r),k=u[t]^u[n],d=u[t+1]^u[n+1],u[t]=k>>>24^d<<8,u[t+1]=d>>>24^k<<8,i(u,e,t),o(u,e,l,b),k=u[r]^u[e],d=u[r+1]^u[e+1],u[r]=k>>>16^d<<16,u[r+1]=d>>>16^k<<16,i(u,n,r),k=u[t]^u[n],d=u[t+1]^u[n+1],u[t]=d>>>31^k<<1,u[t+1]=k>>>31^d<<1}var f=new Uint32Array([4089235720,1779033703,2227873595,3144134277,4271175723,1013904242,1595750129,2773480762,2917565137,1359893119,725511199,2600822924,4215389547,528734635,327033209,1541459225]),c=new Uint8Array([0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,10,4,8,9,15,13,6,1,12,0,2,11,7,5,3,11,8,12,0,5,2,15,13,10,14,3,6,7,1,9,4,7,9,3,1,13,12,11,14,2,6,5,10,4,0,15,8,9,0,5,7,2,4,10,15,14,1,11,12,6,8,3,13,2,12,6,10,0,11,8,3,4,13,7,5,15,14,1,9,12,5,1,15,14,13,4,10,0,7,6,3,9,2,8,11,13,11,7,14,12,1,3,9,5,0,15,4,8,6,2,10,6,15,14,9,11,3,0,8,12,2,13,7,1,4,10,5,10,2,8,4,7,6,1,5,15,11,9,14,3,12,13,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,10,4,8,9,15,13,6,1,12,0,2,11,7,5,3].map((function(e){return 2*e}))),u=new Uint32Array(32),h=new Uint32Array(32);function l(e,t){var n=0;for(n=0;n<16;n++)u[n]=e.h[n],u[n+16]=f[n];for(u[24]=u[24]^e.t,u[25]=u[25]^e.t/4294967296,t&&(u[28]=~u[28],u[29]=~u[29]),n=0;n<32;n++)h[n]=s(e.b,4*n);for(n=0;n<12;n++)a(0,8,16,24,c[16*n+0],c[16*n+1]),a(2,10,18,26,c[16*n+2],c[16*n+3]),a(4,12,20,28,c[16*n+4],c[16*n+5]),a(6,14,22,30,c[16*n+6],c[16*n+7]),a(0,10,20,30,c[16*n+8],c[16*n+9]),a(2,12,22,24,c[16*n+10],c[16*n+11]),a(4,14,16,26,c[16*n+12],c[16*n+13]),a(6,8,18,28,c[16*n+14],c[16*n+15]);for(n=0;n<16;n++)e.h[n]=e.h[n]^u[n]^u[n+16]}function b(e,t){if(0===e||e>64)throw new Error("Illegal output length, expected 0 < length <= 64");if(t&&t.length>64)throw new Error("Illegal key, expected Uint8Array with 0 < length <= 64");for(var n={b:new Uint8Array(128),h:new Uint32Array(16),t:0,c:0,outlen:e},r=0;r<16;r++)n.h[r]=f[r];var i=t?t.length:0;return n.h[0]^=16842752^i<<8^e,t&&(k(n,t),n.c=128),n}function k(e,t){for(var n=0;n>2]>>8*(3&n);return t}function p(e,t,n){n=n||64,e=r.normalizeInput(e);var i=b(n,t);return k(i,e),d(i)}e.exports={blake2b:p,blake2bHex:function(e,t,n){var i=p(e,t,n);return r.toHex(i)},blake2bInit:b,blake2bUpdate:k,blake2bFinal:d}},function(e,t,n){var r=n(24);function i(e,t){return e[t]^e[t+1]<<8^e[t+2]<<16^e[t+3]<<24}function o(e,t,n,r,i,o){c[e]=c[e]+c[t]+i,c[r]=s(c[r]^c[e],16),c[n]=c[n]+c[r],c[t]=s(c[t]^c[n],12),c[e]=c[e]+c[t]+o,c[r]=s(c[r]^c[e],8),c[n]=c[n]+c[r],c[t]=s(c[t]^c[n],7)}function s(e,t){return e>>>t^e<<32-t}var a=new Uint32Array([1779033703,3144134277,1013904242,2773480762,1359893119,2600822924,528734635,1541459225]),f=new Uint8Array([0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,10,4,8,9,15,13,6,1,12,0,2,11,7,5,3,11,8,12,0,5,2,15,13,10,14,3,6,7,1,9,4,7,9,3,1,13,12,11,14,2,6,5,10,4,0,15,8,9,0,5,7,2,4,10,15,14,1,11,12,6,8,3,13,2,12,6,10,0,11,8,3,4,13,7,5,15,14,1,9,12,5,1,15,14,13,4,10,0,7,6,3,9,2,8,11,13,11,7,14,12,1,3,9,5,0,15,4,8,6,2,10,6,15,14,9,11,3,0,8,12,2,13,7,1,4,10,5,10,2,8,4,7,6,1,5,15,11,9,14,3,12,13,0]),c=new Uint32Array(16),u=new Uint32Array(16);function h(e,t){var n=0;for(n=0;n<8;n++)c[n]=e.h[n],c[n+8]=a[n];for(c[12]^=e.t,c[13]^=e.t/4294967296,t&&(c[14]=~c[14]),n=0;n<16;n++)u[n]=i(e.b,4*n);for(n=0;n<10;n++)o(0,4,8,12,u[f[16*n+0]],u[f[16*n+1]]),o(1,5,9,13,u[f[16*n+2]],u[f[16*n+3]]),o(2,6,10,14,u[f[16*n+4]],u[f[16*n+5]]),o(3,7,11,15,u[f[16*n+6]],u[f[16*n+7]]),o(0,5,10,15,u[f[16*n+8]],u[f[16*n+9]]),o(1,6,11,12,u[f[16*n+10]],u[f[16*n+11]]),o(2,7,8,13,u[f[16*n+12]],u[f[16*n+13]]),o(3,4,9,14,u[f[16*n+14]],u[f[16*n+15]]);for(n=0;n<8;n++)e.h[n]^=c[n]^c[n+8]}function l(e,t){if(!(e>0&&e<=32))throw new Error("Incorrect output length, should be in [1, 32]");var n=t?t.length:0;if(t&&!(n>0&&n<=32))throw new Error("Incorrect key length, should be in [1, 32]");var r={h:new Uint32Array(a),b:new Uint32Array(64),c:0,t:0,outlen:e};return r.h[0]^=16842752^n<<8^e,n>0&&(b(r,t),r.c=64),r}function b(e,t){for(var n=0;n>2]>>8*(3&n)&255;return t}function d(e,t,n){n=n||32,e=r.normalizeInput(e);var i=l(n,t);return b(i,e),k(i)}e.exports={blake2s:d,blake2sHex:function(e,t,n){var i=d(e,t,n);return r.toHex(i)},blake2sInit:l,blake2sUpdate:b,blake2sFinal:k}},function(e,t,n){"use strict";const r=n(9),i=r.cloneLinks,o=r.cloneData,s=n(7);e.exports=function(e){const t=o(e),n=i(e);return s(t,n)}},function(e,t,n){"use strict";const r=n(9),i=r.cloneLinks,o=r.cloneData,s=r.toDAGLink,a=n(3),f=n(6),c=n(7);e.exports=async(e,t)=>{const n=i(e),r=o(e),u=await(async e=>a.isDAGLink(e)?e:f.isDAGNode(e)?s(e,{}):new a(e.Name||e.name,e.Tsize||e.size,e.Hash||e.multihash||e.hash||e.cid))(t);return n.push(u),c(r,n)}},function(e,t,n){"use strict";(function(t){const r=n(9),i=r.cloneLinks,o=r.cloneData,s=n(7),a=n(4);e.exports=(e,n)=>{const r=o(e);let f=i(e);if("string"==typeof n)f=f.filter(e=>e.Name!==n);else{if(!t.isBuffer(n)&&!a.isCID(n))throw new Error("second arg needs to be a name or CID");f=f.filter(e=>!e.Hash.equals(n))}return s(r,f)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(e){const r=n(4),i=n(8);t.resolve=(e,t)=>{let n=i.deserialize(e);const o=t.split("/").filter(Boolean);for(;o.length;){const e=o.shift();if(void 0===n[e])throw new Error(`Object has no property '${e}'`);if(n=n[e],r.isCID(n))return{value:n,remainderPath:o.join("/")}}return{value:n,remainderPath:""}};const o=function*(t,n){if(!e.isBuffer(t)&&!r.isCID(t)&&"string"!=typeof t&&null!==t)for(const e of Object.keys(t)){const r=void 0===n?e:n+"/"+e;yield r,yield*o(t[e],r)}};t.tree=function*(e){const t=i.deserialize(e);yield*o(t)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";const r=n(90),i=n(2).isFunction,o=n(2).isBoolean,s=n(2).isObject,a=n(2).isArray,f=n(2).isRegex,c=n(2).assign,u=n(2).keys;e.exports=function(e,t){t=t||c({},r),i(t)&&(t={compare:t});const n=t.space||r.space,h=o(t.cycles)?t.cycles:r.cycles,l=t.replacer||r.replacer,b=t.stringify||r.stringify,k=t.compare&&(d=t.compare,function(e){return function(t,n){const r={key:t,value:e[t]},i={key:n,value:e[n]};return d(r,i)}});var d;h||b(e);const p=[];return function e(t,r,i,o){const c=n?"\n"+new Array(o+1).join(n):"",d=n?": ":":";if(i=function(e){return null==e?e:f(e)?e.toString():e.toJSON?e.toJSON():e}(i),void 0!==(i=l.call(t,r,i))){if(!s(i)||null===i)return b(i);if(a(i)){const t=[];for(let r=0;rt,stringify:JSON.stringify}},function(e,t,n){"use strict";const r=n(11),i=n(92),o=n(5),s=n(25),{isDefined:a,findUniques:f,difference:c,io:u}=n(12),h=["heads"],l=(e,t)=>e.slice(e.length-Math.min(e.length,t),e.length);e.exports=class{static async toMultihash(e,t,{format:n}={}){if(!a(e))throw s.IPFSNotDefinedError();if(!a(t))throw s.LogNotDefinedError();if(a(n)||(n="dag-cbor"),t.values.length<1)throw new Error("Can't serialize an empty log");return u.write(e,n,t.toJSON(),{links:h})}static async fromMultihash(e,t,{length:n=-1,exclude:f,onProgressCallback:c,timeout:l}={}){if(!a(e))throw s.IPFSNotDefinedError();if(!a(t))throw new Error(`Invalid hash: ${t}`);const b=await u.read(e,t,{links:h});if(!b.heads||!b.id)throw s.NotALogError();const k=await i.fetchAll(e,b.heads,{length:n,exclude:f,onProgressCallback:c,timeout:l}),d=k.reduce((e,t)=>t.clock.time>e.time?new o(t.clock.id,t.clock.time):e,new o(b.id)),p=k.slice().sort(r.compare),m=p.filter(e=>b.heads.includes(e.hash));return{id:b.id,values:p,heads:m,clock:d}}static async fromEntryHash(e,t,{length:n=-1,exclude:r,onProgressCallback:o,timeout:f}){if(!a(e))throw s.IpfsNotDefinedError();if(!a(t))throw new Error("'hash' must be defined");const c=Array.isArray(t)?t:[t];n=n>-1?Math.max(n,1):n;const u=await i.fetchParallel(e,c,{length:n,exclude:r,onProgressCallback:o,timeout:f});return{values:n>-1?l(u,n):u}}static async fromJSON(e,t,{length:n=-1,timeout:o,onProgressCallback:f}){if(!a(e))throw s.IPFSNotDefinedError();const c=t.heads.map(e=>e.hash),u=(await i.fetchParallel(e,c,{length:n,exclude:[],concurrency:16,timeout:o,onProgressCallback:f})).slice().sort(r.compare);return{id:t.id,values:u,heads:t.heads}}static async fromEntry(e,t,{length:n=-1,exclude:o,onProgressCallback:u,timeout:h}){if(!a(e))throw s.IPFSNotDefinedError();if(!a(t))throw new Error("'sourceEntries' must be defined");if(!Array.isArray(t)&&!r.isEntry(t))throw new Error("'sourceEntries' argument must be an array of Entry instances or a single Entry");Array.isArray(t)||(t=[t]),n=n>-1?Math.max(n,t.length):n;const l=t.map(e=>e.hash),b=await i.fetchParallel(e,l,{length:n,exclude:o,onProgressCallback:u,timeout:h}),k=t.concat(b),d=f(k,"hash").sort(r.compare),p=d.slice(n>-1?-n:-d.length),m=((e,t)=>{var n=e.slice(t.length,e.length);return t.concat(n)})(p,c(p,t,"hash"));return{id:m[m.length-1].id,values:m}}}},function(e,t,n){"use strict";const r=n(93),i=n(94),o=n(11);class s{static async fetchParallel(e,t,{length:n=-1,exclude:r=[],concurrency:o=null,timeout:a,onProgressCallback:f}={}){const c=e=>e.hash,u=(e,t)=>{const n=e.map(c);return t.forEach(t=>{-1===n.indexOf(t.hash)&&e.push(t)}),e},h=Array.isArray(t)?t.slice():[t];return o=Math.max(o||h.length,1),(e=>e.reduce(u,[]))(await i(h,t=>s.fetchAll(e,t,{length:n,exclude:r,timeout:a,onProgressCallback:f}),{concurrency:o}))}static async fetchAll(e,t,{length:n=-1,exclude:i=[],timeout:s=null,onProgressCallback:a,concurrency:f=32}={}){let c=[],u={},h=Array.isArray(t)?t.slice():[t];const l=e=>h.push(e);(i=i&&Array.isArray(i)?i:[]).forEach(e=>{o.isEntry(e)&&(c.push(e),u[e.hash]=e)});return await r(()=>h.length>0&&(c.length{const t=h.shift();return!t||u[t]?Promise.resolve():new Promise(async(n,r)=>{const i=s?setTimeout(()=>{console.warn(`Warning: Couldn't fetch entry '${t}', request timed out (${s}ms)`),n()},s):null;try{(e=>{o.isEntry(e)&&(e.next.forEach(l),e.refs.forEach(l),c.push(e),u[t]=e,a&&a(t,e,c.length,c,h))})(await o.fromMultihash(e,t)),n()}catch(e){r(e)}finally{clearTimeout(i)}})}),u={},h=[],c}}e.exports=s},function(e,t,n){"use strict";const r=e=>new Promise(t=>{t(e())});e.exports=(e,t)=>r((function n(){if(e())return r(t).then(n)}))},function(e,t,n){"use 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strict";e.exports=class{constructor(e={}){this._cache=e}set(e,t){this._cache[e]=t}get(e){return this._cache[e]}delete(e){return delete this._cache[e]}add(e){this._cache=Object.assign(this._cache,e)}get length(){return Object.values(this._cache).length}}}]); + */!function(){"use strict";var s="input is invalid type",a="object"==typeof window,f=a?window:{};f.JS_SHA3_NO_WINDOW&&(a=!1);var c=!a&&"object"==typeof self;!f.JS_SHA3_NO_NODE_JS&&"object"==typeof r&&r.versions&&r.versions.node?f=i:c&&(f=self);var u=!f.JS_SHA3_NO_COMMON_JS&&"object"==typeof e&&e.exports,h=n(77),l=!f.JS_SHA3_NO_ARRAY_BUFFER&&"undefined"!=typeof ArrayBuffer,b="0123456789abcdef".split(""),k=[4,1024,262144,67108864],d=[0,8,16,24],p=[1,0,32898,0,32906,2147483648,2147516416,2147483648,32907,0,2147483649,0,2147516545,2147483648,32777,2147483648,138,0,136,0,2147516425,0,2147483658,0,2147516555,0,139,2147483648,32905,2147483648,32771,2147483648,32770,2147483648,128,2147483648,32778,0,2147483658,2147483648,2147516545,2147483648,32896,2147483648,2147483649,0,2147516424,2147483648],m=[224,256,384,512],g=[128,256],S=["hex","buffer","arrayBuffer","array","digest"],y={128:168,256:136};!f.JS_SHA3_NO_NODE_JS&&Array.isArray||(Array.isArray=function(e){return"[object Array]"===Object.prototype.toString.call(e)}),!l||!f.JS_SHA3_NO_ARRAY_BUFFER_IS_VIEW&&ArrayBuffer.isView||(ArrayBuffer.isView=function(e){return"object"==typeof e&&e.buffer&&e.buffer.constructor===ArrayBuffer});for(var E=function(e,t,n){return function(r){return new C(e,t,e).update(r)[n]()}},x=function(e,t,n){return function(r,i){return new C(e,t,i).update(r)[n]()}},w=function(e,t,n){return function(t,r,i,o){return N["cshake"+e].update(t,r,i,o)[n]()}},v=function(e,t,n){return function(t,r,i,o){return N["kmac"+e].update(t,r,i,o)[n]()}},_=function(e,t,n,r){for(var i=0;i>5,this.byteCount=this.blockCount<<2,this.outputBlocks=n>>5,this.extraBytes=(31&n)>>3;for(var r=0;r<50;++r)this.s[r]=0}function D(e,t,n){C.call(this,e,t,n)}C.prototype.update=function(e){if(this.finalized)throw new Error("finalize already called");var t,n=typeof e;if("string"!==n){if("object"!==n)throw new Error(s);if(null===e)throw new Error(s);if(l&&e.constructor===ArrayBuffer)e=new Uint8Array(e);else if(!(Array.isArray(e)||l&&ArrayBuffer.isView(e)))throw new Error(s);t=!0}for(var r,i,o=this.blocks,a=this.byteCount,f=e.length,c=this.blockCount,u=0,h=this.s;u>2]|=e[u]<>2]|=i<>2]|=(192|i>>6)<>2]|=(128|63&i)<=57344?(o[r>>2]|=(224|i>>12)<>2]|=(128|i>>6&63)<>2]|=(128|63&i)<>2]|=(240|i>>18)<>2]|=(128|i>>12&63)<>2]|=(128|i>>6&63)<>2]|=(128|63&i)<=a){for(this.start=r-a,this.block=o[c],r=0;r>=8);n>0;)i.unshift(n),n=255&(e>>=8),++r;return t?i.push(r):i.unshift(r),this.update(i),i.length},C.prototype.encodeString=function(e){var t,n=typeof e;if("string"!==n){if("object"!==n)throw new Error(s);if(null===e)throw new Error(s);if(l&&e.constructor===ArrayBuffer)e=new Uint8Array(e);else if(!(Array.isArray(e)||l&&ArrayBuffer.isView(e)))throw new Error(s);t=!0}var r=0,i=e.length;if(t)r=i;else for(var o=0;o=57344?r+=3:(a=65536+((1023&a)<<10|1023&e.charCodeAt(++o)),r+=4)}return r+=this.encode(8*r),this.update(e),r},C.prototype.bytepad=function(e,t){for(var n=this.encode(t),r=0;r>2]|=this.padding[3&t],this.lastByteIndex===this.byteCount)for(e[0]=e[n],t=1;t>4&15]+b[15&e]+b[e>>12&15]+b[e>>8&15]+b[e>>20&15]+b[e>>16&15]+b[e>>28&15]+b[e>>24&15];s%t==0&&(U(n),o=0)}return i&&(e=n[o],a+=b[e>>4&15]+b[15&e],i>1&&(a+=b[e>>12&15]+b[e>>8&15]),i>2&&(a+=b[e>>20&15]+b[e>>16&15])),a},C.prototype.arrayBuffer=function(){this.finalize();var e,t=this.blockCount,n=this.s,r=this.outputBlocks,i=this.extraBytes,o=0,s=0,a=this.outputBits>>3;e=i?new ArrayBuffer(r+1<<2):new ArrayBuffer(a);for(var f=new Uint32Array(e);s>8&255,f[e+2]=t>>16&255,f[e+3]=t>>24&255;a%n==0&&U(r)}return o&&(e=a<<2,t=r[s],f[e]=255&t,o>1&&(f[e+1]=t>>8&255),o>2&&(f[e+2]=t>>16&255)),f},D.prototype=new C,D.prototype.finalize=function(){return this.encode(this.outputBits,!0),C.prototype.finalize.call(this)};var U=function(e){var t,n,r,i,o,s,a,f,c,u,h,l,b,k,d,m,g,S,y,E,x,w,v,_,I,A,N,B,K,O,L,T,j,P,C,D,U,R,M,z,H,F,q,Y,G,J,$,V,W,X,Z,Q,ee,te,ne,re,ie,oe,se,ae,fe,ce,ue;for(r=0;r<48;r+=2)i=e[0]^e[10]^e[20]^e[30]^e[40],o=e[1]^e[11]^e[21]^e[31]^e[41],s=e[2]^e[12]^e[22]^e[32]^e[42],a=e[3]^e[13]^e[23]^e[33]^e[43],f=e[4]^e[14]^e[24]^e[34]^e[44],c=e[5]^e[15]^e[25]^e[35]^e[45],u=e[6]^e[16]^e[26]^e[36]^e[46],h=e[7]^e[17]^e[27]^e[37]^e[47],t=(l=e[8]^e[18]^e[28]^e[38]^e[48])^(s<<1|a>>>31),n=(b=e[9]^e[19]^e[29]^e[39]^e[49])^(a<<1|s>>>31),e[0]^=t,e[1]^=n,e[10]^=t,e[11]^=n,e[20]^=t,e[21]^=n,e[30]^=t,e[31]^=n,e[40]^=t,e[41]^=n,t=i^(f<<1|c>>>31),n=o^(c<<1|f>>>31),e[2]^=t,e[3]^=n,e[12]^=t,e[13]^=n,e[22]^=t,e[23]^=n,e[32]^=t,e[33]^=n,e[42]^=t,e[43]^=n,t=s^(u<<1|h>>>31),n=a^(h<<1|u>>>31),e[4]^=t,e[5]^=n,e[14]^=t,e[15]^=n,e[24]^=t,e[25]^=n,e[34]^=t,e[35]^=n,e[44]^=t,e[45]^=n,t=f^(l<<1|b>>>31),n=c^(b<<1|l>>>31),e[6]^=t,e[7]^=n,e[16]^=t,e[17]^=n,e[26]^=t,e[27]^=n,e[36]^=t,e[37]^=n,e[46]^=t,e[47]^=n,t=u^(i<<1|o>>>31),n=h^(o<<1|i>>>31),e[8]^=t,e[9]^=n,e[18]^=t,e[19]^=n,e[28]^=t,e[29]^=n,e[38]^=t,e[39]^=n,e[48]^=t,e[49]^=n,k=e[0],d=e[1],J=e[11]<<4|e[10]>>>28,$=e[10]<<4|e[11]>>>28,B=e[20]<<3|e[21]>>>29,K=e[21]<<3|e[20]>>>29,ae=e[31]<<9|e[30]>>>23,fe=e[30]<<9|e[31]>>>23,F=e[40]<<18|e[41]>>>14,q=e[41]<<18|e[40]>>>14,P=e[2]<<1|e[3]>>>31,C=e[3]<<1|e[2]>>>31,m=e[13]<<12|e[12]>>>20,g=e[12]<<12|e[13]>>>20,V=e[22]<<10|e[23]>>>22,W=e[23]<<10|e[22]>>>22,O=e[33]<<13|e[32]>>>19,L=e[32]<<13|e[33]>>>19,ce=e[42]<<2|e[43]>>>30,ue=e[43]<<2|e[42]>>>30,te=e[5]<<30|e[4]>>>2,ne=e[4]<<30|e[5]>>>2,D=e[14]<<6|e[15]>>>26,U=e[15]<<6|e[14]>>>26,S=e[25]<<11|e[24]>>>21,y=e[24]<<11|e[25]>>>21,X=e[34]<<15|e[35]>>>17,Z=e[35]<<15|e[34]>>>17,T=e[45]<<29|e[44]>>>3,j=e[44]<<29|e[45]>>>3,_=e[6]<<28|e[7]>>>4,I=e[7]<<28|e[6]>>>4,re=e[17]<<23|e[16]>>>9,ie=e[16]<<23|e[17]>>>9,R=e[26]<<25|e[27]>>>7,M=e[27]<<25|e[26]>>>7,E=e[36]<<21|e[37]>>>11,x=e[37]<<21|e[36]>>>11,Q=e[47]<<24|e[46]>>>8,ee=e[46]<<24|e[47]>>>8,Y=e[8]<<27|e[9]>>>5,G=e[9]<<27|e[8]>>>5,A=e[18]<<20|e[19]>>>12,N=e[19]<<20|e[18]>>>12,oe=e[29]<<7|e[28]>>>25,se=e[28]<<7|e[29]>>>25,z=e[38]<<8|e[39]>>>24,H=e[39]<<8|e[38]>>>24,w=e[48]<<14|e[49]>>>18,v=e[49]<<14|e[48]>>>18,e[0]=k^~m&S,e[1]=d^~g&y,e[10]=_^~A&B,e[11]=I^~N&K,e[20]=P^~D&R,e[21]=C^~U&M,e[30]=Y^~J&V,e[31]=G^~$&W,e[40]=te^~re&oe,e[41]=ne^~ie&se,e[2]=m^~S&E,e[3]=g^~y&x,e[12]=A^~B&O,e[13]=N^~K&L,e[22]=D^~R&z,e[23]=U^~M&H,e[32]=J^~V&X,e[33]=$^~W&Z,e[42]=re^~oe&ae,e[43]=ie^~se&fe,e[4]=S^~E&w,e[5]=y^~x&v,e[14]=B^~O&T,e[15]=K^~L&j,e[24]=R^~z&F,e[25]=M^~H&q,e[34]=V^~X&Q,e[35]=W^~Z&ee,e[44]=oe^~ae&ce,e[45]=se^~fe&ue,e[6]=E^~w&k,e[7]=x^~v&d,e[16]=O^~T&_,e[17]=L^~j&I,e[26]=z^~F&P,e[27]=H^~q&C,e[36]=X^~Q&Y,e[37]=Z^~ee&G,e[46]=ae^~ce&te,e[47]=fe^~ue&ne,e[8]=w^~k&m,e[9]=v^~d&g,e[18]=T^~_&A,e[19]=j^~I&N,e[28]=F^~P&D,e[29]=q^~C&U,e[38]=Q^~Y&J,e[39]=ee^~G&$,e[48]=ce^~te&re,e[49]=ue^~ne&ie,e[0]^=p[r],e[1]^=p[r+1]};if(u)e.exports=N;else{for(K=0;K255)return!1;return!0}function s(e,t){return(65535&e)*t+(((e>>>16)*t&65535)<<16)}function a(e,t){return e<>>32-t}function f(e){return e=s(e^=e>>>16,2246822507),e=s(e^=e>>>13,3266489909),e^=e>>>16}function c(e,t){e=[e[0]>>>16,65535&e[0],e[1]>>>16,65535&e[1]],t=[t[0]>>>16,65535&t[0],t[1]>>>16,65535&t[1]];var n=[0,0,0,0];return n[3]+=e[3]+t[3],n[2]+=n[3]>>>16,n[3]&=65535,n[2]+=e[2]+t[2],n[1]+=n[2]>>>16,n[2]&=65535,n[1]+=e[1]+t[1],n[0]+=n[1]>>>16,n[1]&=65535,n[0]+=e[0]+t[0],n[0]&=65535,[n[0]<<16|n[1],n[2]<<16|n[3]]}function u(e,t){e=[e[0]>>>16,65535&e[0],e[1]>>>16,65535&e[1]],t=[t[0]>>>16,65535&t[0],t[1]>>>16,65535&t[1]];var n=[0,0,0,0];return n[3]+=e[3]*t[3],n[2]+=n[3]>>>16,n[3]&=65535,n[2]+=e[2]*t[3],n[1]+=n[2]>>>16,n[2]&=65535,n[2]+=e[3]*t[2],n[1]+=n[2]>>>16,n[2]&=65535,n[1]+=e[1]*t[3],n[0]+=n[1]>>>16,n[1]&=65535,n[1]+=e[2]*t[2],n[0]+=n[1]>>>16,n[1]&=65535,n[1]+=e[3]*t[1],n[0]+=n[1]>>>16,n[1]&=65535,n[0]+=e[0]*t[3]+e[1]*t[2]+e[2]*t[1]+e[3]*t[0],n[0]&=65535,[n[0]<<16|n[1],n[2]<<16|n[3]]}function h(e,t){return 32===(t%=64)?[e[1],e[0]]:t<32?[e[0]<>>32-t,e[1]<>>32-t]:(t-=32,[e[1]<>>32-t,e[0]<>>32-t])}function l(e,t){return 0===(t%=64)?e:t<32?[e[0]<>>32-t,e[1]<>>1]),e=b(e=u(e,[4283543511,3981806797]),[0,e[0]>>>1]),e=b(e=u(e,[3301882366,444984403]),[0,e[0]>>>1])}i.x86.hash32=function(e,t){if(!i.inputValidation||o(e)){t=t||0;for(var n=e.length%4,r=e.length-n,c=t,u=0,h=3432918353,l=461845907,b=0;b>>0}},i.x86.hash128=function(e,t){if(!i.inputValidation||o(e)){t=t||0;for(var n=e.length%16,r=e.length-n,c=t,u=t,h=t,l=t,b=0,k=0,d=0,p=0,m=597399067,g=2869860233,S=951274213,y=2716044179,E=0;E>>0).toString(16)).slice(-8)+("00000000"+(u>>>0).toString(16)).slice(-8)+("00000000"+(h>>>0).toString(16)).slice(-8)+("00000000"+(l>>>0).toString(16)).slice(-8)}},i.x64.hash128=function(e,t){if(!i.inputValidation||o(e)){t=t||0;for(var n=e.length%16,r=e.length-n,s=[0,t],a=[0,t],f=[0,0],d=[0,0],p=[2277735313,289559509],m=[1291169091,658871167],g=0;g>>0).toString(16)).slice(-8)+("00000000"+(s[1]>>>0).toString(16)).slice(-8)+("00000000"+(a[0]>>>0).toString(16)).slice(-8)+("00000000"+(a[1]>>>0).toString(16)).slice(-8)}},e.exports&&(t=e.exports=i),t.murmurHash3=i}()},function(e,t,n){"use strict";const{Buffer:r}=n(0),i=self.crypto||self.msCrypto;e.exports=e=>{if("undefined"==typeof self||!self.crypto&&!self.msCrypto)throw new Error("Please use a browser with webcrypto support and ensure the code has been delivered securely via HTTPS/TLS and run within a Secure Context");return async t=>{switch(e){case"sha1":return r.from(await i.subtle.digest({name:"SHA-1"},t));case"sha2-256":return r.from(await i.subtle.digest({name:"SHA-256"},t));case"sha2-512":return r.from(await i.subtle.digest({name:"SHA-512"},t));case"dbl-sha2-256":{const e=await i.subtle.digest({name:"SHA-256"},t);return r.from(await i.subtle.digest({name:"SHA-256"},e))}default:throw new Error(`${e} is not a supported algorithm`)}}}},function(e,t,n){"use strict";const{Buffer:r}=n(0);e.exports={fromNumberTo32BitBuf:e=>{const t=new Array(4);for(let n=0;n<4;n++)t[n]=255&e,e>>=8;return r.from(t)}}},function(e,t,n){"use strict";const{Buffer:r}=n(0),i=n(83),o={init:i.blake2bInit,update:i.blake2bUpdate,digest:i.blake2bFinal},s={init:i.blake2sInit,update:i.blake2sUpdate,digest:i.blake2sFinal},a=(e,t)=>async n=>{const i=t.init(e,null);return t.update(i,n),r.from(t.digest(i))};e.exports=e=>{for(let t=0;t<64;t++)e[45569+t]=a(t+1,o);for(let t=0;t<32;t++)e[45633+t]=a(t+1,s)}},function(e,t,n){var r=n(84),i=n(85);e.exports={blake2b:r.blake2b,blake2bHex:r.blake2bHex,blake2bInit:r.blake2bInit,blake2bUpdate:r.blake2bUpdate,blake2bFinal:r.blake2bFinal,blake2s:i.blake2s,blake2sHex:i.blake2sHex,blake2sInit:i.blake2sInit,blake2sUpdate:i.blake2sUpdate,blake2sFinal:i.blake2sFinal}},function(e,t,n){var r=n(25);function i(e,t,n){var r=e[t]+e[n],i=e[t+1]+e[n+1];r>=4294967296&&i++,e[t]=r,e[t+1]=i}function o(e,t,n,r){var i=e[t]+n;n<0&&(i+=4294967296);var o=e[t+1]+r;i>=4294967296&&o++,e[t]=i,e[t+1]=o}function s(e,t){return e[t]^e[t+1]<<8^e[t+2]<<16^e[t+3]<<24}function a(e,t,n,r,s,a){var f=h[s],c=h[s+1],l=h[a],b=h[a+1];i(u,e,t),o(u,e,f,c);var k=u[r]^u[e],d=u[r+1]^u[e+1];u[r]=d,u[r+1]=k,i(u,n,r),k=u[t]^u[n],d=u[t+1]^u[n+1],u[t]=k>>>24^d<<8,u[t+1]=d>>>24^k<<8,i(u,e,t),o(u,e,l,b),k=u[r]^u[e],d=u[r+1]^u[e+1],u[r]=k>>>16^d<<16,u[r+1]=d>>>16^k<<16,i(u,n,r),k=u[t]^u[n],d=u[t+1]^u[n+1],u[t]=d>>>31^k<<1,u[t+1]=k>>>31^d<<1}var f=new Uint32Array([4089235720,1779033703,2227873595,3144134277,4271175723,1013904242,1595750129,2773480762,2917565137,1359893119,725511199,2600822924,4215389547,528734635,327033209,1541459225]),c=new Uint8Array([0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,10,4,8,9,15,13,6,1,12,0,2,11,7,5,3,11,8,12,0,5,2,15,13,10,14,3,6,7,1,9,4,7,9,3,1,13,12,11,14,2,6,5,10,4,0,15,8,9,0,5,7,2,4,10,15,14,1,11,12,6,8,3,13,2,12,6,10,0,11,8,3,4,13,7,5,15,14,1,9,12,5,1,15,14,13,4,10,0,7,6,3,9,2,8,11,13,11,7,14,12,1,3,9,5,0,15,4,8,6,2,10,6,15,14,9,11,3,0,8,12,2,13,7,1,4,10,5,10,2,8,4,7,6,1,5,15,11,9,14,3,12,13,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,10,4,8,9,15,13,6,1,12,0,2,11,7,5,3].map((function(e){return 2*e}))),u=new Uint32Array(32),h=new Uint32Array(32);function l(e,t){var n=0;for(n=0;n<16;n++)u[n]=e.h[n],u[n+16]=f[n];for(u[24]=u[24]^e.t,u[25]=u[25]^e.t/4294967296,t&&(u[28]=~u[28],u[29]=~u[29]),n=0;n<32;n++)h[n]=s(e.b,4*n);for(n=0;n<12;n++)a(0,8,16,24,c[16*n+0],c[16*n+1]),a(2,10,18,26,c[16*n+2],c[16*n+3]),a(4,12,20,28,c[16*n+4],c[16*n+5]),a(6,14,22,30,c[16*n+6],c[16*n+7]),a(0,10,20,30,c[16*n+8],c[16*n+9]),a(2,12,22,24,c[16*n+10],c[16*n+11]),a(4,14,16,26,c[16*n+12],c[16*n+13]),a(6,8,18,28,c[16*n+14],c[16*n+15]);for(n=0;n<16;n++)e.h[n]=e.h[n]^u[n]^u[n+16]}function b(e,t){if(0===e||e>64)throw new Error("Illegal output length, expected 0 < length <= 64");if(t&&t.length>64)throw new Error("Illegal key, expected Uint8Array with 0 < length <= 64");for(var n={b:new Uint8Array(128),h:new Uint32Array(16),t:0,c:0,outlen:e},r=0;r<16;r++)n.h[r]=f[r];var i=t?t.length:0;return n.h[0]^=16842752^i<<8^e,t&&(k(n,t),n.c=128),n}function k(e,t){for(var n=0;n>2]>>8*(3&n);return t}function p(e,t,n){n=n||64,e=r.normalizeInput(e);var i=b(n,t);return k(i,e),d(i)}e.exports={blake2b:p,blake2bHex:function(e,t,n){var i=p(e,t,n);return r.toHex(i)},blake2bInit:b,blake2bUpdate:k,blake2bFinal:d}},function(e,t,n){var r=n(25);function i(e,t){return e[t]^e[t+1]<<8^e[t+2]<<16^e[t+3]<<24}function o(e,t,n,r,i,o){c[e]=c[e]+c[t]+i,c[r]=s(c[r]^c[e],16),c[n]=c[n]+c[r],c[t]=s(c[t]^c[n],12),c[e]=c[e]+c[t]+o,c[r]=s(c[r]^c[e],8),c[n]=c[n]+c[r],c[t]=s(c[t]^c[n],7)}function s(e,t){return e>>>t^e<<32-t}var a=new Uint32Array([1779033703,3144134277,1013904242,2773480762,1359893119,2600822924,528734635,1541459225]),f=new Uint8Array([0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,10,4,8,9,15,13,6,1,12,0,2,11,7,5,3,11,8,12,0,5,2,15,13,10,14,3,6,7,1,9,4,7,9,3,1,13,12,11,14,2,6,5,10,4,0,15,8,9,0,5,7,2,4,10,15,14,1,11,12,6,8,3,13,2,12,6,10,0,11,8,3,4,13,7,5,15,14,1,9,12,5,1,15,14,13,4,10,0,7,6,3,9,2,8,11,13,11,7,14,12,1,3,9,5,0,15,4,8,6,2,10,6,15,14,9,11,3,0,8,12,2,13,7,1,4,10,5,10,2,8,4,7,6,1,5,15,11,9,14,3,12,13,0]),c=new Uint32Array(16),u=new Uint32Array(16);function h(e,t){var n=0;for(n=0;n<8;n++)c[n]=e.h[n],c[n+8]=a[n];for(c[12]^=e.t,c[13]^=e.t/4294967296,t&&(c[14]=~c[14]),n=0;n<16;n++)u[n]=i(e.b,4*n);for(n=0;n<10;n++)o(0,4,8,12,u[f[16*n+0]],u[f[16*n+1]]),o(1,5,9,13,u[f[16*n+2]],u[f[16*n+3]]),o(2,6,10,14,u[f[16*n+4]],u[f[16*n+5]]),o(3,7,11,15,u[f[16*n+6]],u[f[16*n+7]]),o(0,5,10,15,u[f[16*n+8]],u[f[16*n+9]]),o(1,6,11,12,u[f[16*n+10]],u[f[16*n+11]]),o(2,7,8,13,u[f[16*n+12]],u[f[16*n+13]]),o(3,4,9,14,u[f[16*n+14]],u[f[16*n+15]]);for(n=0;n<8;n++)e.h[n]^=c[n]^c[n+8]}function l(e,t){if(!(e>0&&e<=32))throw new Error("Incorrect output length, should be in [1, 32]");var n=t?t.length:0;if(t&&!(n>0&&n<=32))throw new Error("Incorrect key length, should be in [1, 32]");var r={h:new Uint32Array(a),b:new Uint32Array(64),c:0,t:0,outlen:e};return r.h[0]^=16842752^n<<8^e,n>0&&(b(r,t),r.c=64),r}function b(e,t){for(var n=0;n>2]>>8*(3&n)&255;return t}function d(e,t,n){n=n||32,e=r.normalizeInput(e);var i=l(n,t);return b(i,e),k(i)}e.exports={blake2s:d,blake2sHex:function(e,t,n){var i=d(e,t,n);return r.toHex(i)},blake2sInit:l,blake2sUpdate:b,blake2sFinal:k}},function(e,t,n){"use strict";const r=n(9),i=r.cloneLinks,o=r.cloneData,s=n(7);e.exports=function(e){const t=o(e),n=i(e);return s(t,n)}},function(e,t,n){"use strict";const r=n(9),i=r.cloneLinks,o=r.cloneData,s=r.toDAGLink,a=n(3),f=n(6),c=n(7);e.exports=async(e,t)=>{const n=i(e),r=o(e),u=await(async e=>a.isDAGLink(e)?e:f.isDAGNode(e)?s(e,{}):new a(e.Name||e.name,e.Tsize||e.size,e.Hash||e.multihash||e.hash||e.cid))(t);return n.push(u),c(r,n)}},function(e,t,n){"use strict";(function(t){const r=n(9),i=r.cloneLinks,o=r.cloneData,s=n(7),a=n(4);e.exports=(e,n)=>{const r=o(e);let f=i(e);if("string"==typeof n)f=f.filter(e=>e.Name!==n);else{if(!t.isBuffer(n)&&!a.isCID(n))throw new Error("second arg needs to be a name or CID");f=f.filter(e=>!e.Hash.equals(n))}return s(r,f)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";(function(e){const r=n(4),i=n(8);t.resolve=(e,t)=>{let n=i.deserialize(e);const o=t.split("/").filter(Boolean);for(;o.length;){const e=o.shift();if(void 0===n[e])throw new Error(`Object has no property '${e}'`);if(n=n[e],r.isCID(n))return{value:n,remainderPath:o.join("/")}}return{value:n,remainderPath:""}};const o=function*(t,n){if(!e.isBuffer(t)&&!r.isCID(t)&&"string"!=typeof t&&null!==t)for(const e of Object.keys(t)){const r=void 0===n?e:n+"/"+e;yield r,yield*o(t[e],r)}};t.tree=function*(e){const t=i.deserialize(e);yield*o(t)}}).call(this,n(0).Buffer)},function(e,t,n){"use strict";const r=n(91),i=n(2).isFunction,o=n(2).isBoolean,s=n(2).isObject,a=n(2).isArray,f=n(2).isRegex,c=n(2).assign,u=n(2).keys;e.exports=function(e,t){t=t||c({},r),i(t)&&(t={compare:t});const n=t.space||r.space,h=o(t.cycles)?t.cycles:r.cycles,l=t.replacer||r.replacer,b=t.stringify||r.stringify,k=t.compare&&(d=t.compare,function(e){return function(t,n){const r={key:t,value:e[t]},i={key:n,value:e[n]};return d(r,i)}});var d;h||b(e);const p=[];return function e(t,r,i,o){const c=n?"\n"+new Array(o+1).join(n):"",d=n?": ":":";if(i=function(e){return null==e?e:f(e)?e.toString():e.toJSON?e.toJSON():e}(i),void 0!==(i=l.call(t,r,i))){if(!s(i)||null===i)return b(i);if(a(i)){const t=[];for(let r=0;rt,stringify:JSON.stringify}},function(e,t,n){"use strict";const r=n(11),i=n(93),o=(n(5),n(26)),{LastWriteWins:s,NoZeroes:a}=o,f=n(27),{isDefined:c,findUniques:u,difference:h,io:l}=n(12),b=["heads"],k=(e,t)=>e.slice(e.length-Math.min(e.length,t),e.length);e.exports=class{static async toMultihash(e,t,{format:n}={}){if(!c(e))throw f.IPFSNotDefinedError();if(!c(t))throw f.LogNotDefinedError();if(c(n)||(n="dag-cbor"),t.values.length<1)throw new Error("Can't serialize an empty log");return l.write(e,n,t.toJSON(),{links:b})}static async fromMultihash(e,t,{length:n=-1,exclude:r=[],concurrency:o,sortFn:u,onProgressCallback:h}){if(!c(e))throw f.IPFSNotDefinedError();if(!c(t))throw new Error(`Invalid hash: ${t}`);const d=await l.read(e,t,{links:b});if(!d.heads||!d.id)throw f.NotALogError();u=u||a(s);const p=await i.fetchAll(e,d.heads,{length:n,exclude:r,concurrency:o,onProgressCallback:h}),m=d.id,g=n>-1?k(p.sort(u),n):p,S=g.filter(e=>d.heads.includes(e.hash));return{logId:m,entries:g,heads:S}}static async fromEntryHash(e,t,{length:n=-1,exclude:r=[],concurrency:o,onProgressCallback:s}){if(!c(e))throw f.IpfsNotDefinedError();if(!c(t))throw new Error("'hash' must be defined");const a=Array.isArray(t)?t:[t];n=n>-1?Math.max(n,1):n;const u=await i.fetchParallel(e,a,{length:n,exclude:r,concurrency:o,onProgressCallback:s});return{entries:n>-1?k(u,n):u}}static async fromJSON(e,t,{length:n=-1,concurrency:o,onProgressCallback:s}){if(!c(e))throw f.IPFSNotDefinedError();const{id:a,heads:u}=t,h=u.map(e=>e.hash);return{logId:a,entries:(await i.fetchParallel(e,h,{length:n,concurrency:o,onProgressCallback:s})).sort(r.compare),heads:u}}static async fromEntry(e,t,{length:n=-1,exclude:o=[],concurrency:s,onProgressCallback:a}){if(!c(e))throw f.IPFSNotDefinedError();if(!c(t))throw new Error("'sourceEntries' must be defined");if(!Array.isArray(t)&&!r.isEntry(t))throw new Error("'sourceEntries' argument must be an array of Entry instances or a single Entry");Array.isArray(t)||(t=[t]),n=n>-1?Math.max(n,t.length):n;const l=t.map(e=>e.hash),b=await i.fetchParallel(e,l,{length:n,exclude:o,concurrency:s,onProgressCallback:a}),k=t.concat(b).concat(o),d=u(k,"hash").sort(r.compare),p=d.slice(n>-1?-n:-d.length),m=((e,t)=>{var n=e.slice(t.length,e.length);return t.concat(n)})(p,h(p,t,"hash"));return{logId:m[m.length-1].id,entries:m}}}},function(e,t,n){"use strict";const r=n(17),i=n(94),o=n(11),s=e=>e&&e.length>0;class a{static async fetchParallel(e,t,{length:n,exclude:i=[],concurrency:o,onProgressCallback:s}){o=Math.max(o||t.length,1);const f=(e,t)=>e.concat(t);return(e=>e.reduce(f,[]))(await r(t,async t=>a.fetchAll(e,t,{length:n,exclude:i,onProgressCallback:s,concurrency:o}),{concurrency:o}))}static async fetchAll(e,t,{length:n=-1,exclude:a=[],onProgressCallback:f,onStartProgressCallback:c,concurrency:u=32,delay:h=0}={}){let l=[],b={},k={},d=Array.isArray(t)?{0:t.slice()}:{0:[t]},p=0,m=0,g=0;const S=(e,t)=>{k[e]||(d[t]||(d[t]=[]),d[t].includes(e)||d[t].push(e),k[e]=!0)},y=async t=>{if(!t||b[t])return;c&&c(t,null,l.length,l,d);const r=await o.fromMultihash(e,t);if((e=>{if(o.isEntry(e)){const r=e.clock.time;m=Math.max(m,r),g=l.length>0?Math.min(l[l.length-1].clock.time,g):m;const i=l.length>=n&&r>=g,o=e=>m-r+(e+1)*e;(n<0||l.length=g)&&e.next.forEach(e=>S(e,o(0))),l.length+e.refs.length<=n&&e.refs.forEach((e,t)=>S(e,o(t))))}})(r),f&&f(t,r,l.length,l,d),h>0){const e=(e=0)=>new Promise(t=>setTimeout(t,e));await e(h)}};return a.forEach(e=>{b[e.hash]=!0}),await i(async()=>{if(p{return Object.keys(d).reduce((t,n,r)=>{const i=d[n];for(;i.length>0&&t.lengthvoid 0!==Object.values(d).find(s)),l}}e.exports=a},function(e,t,n){"use strict";const r=async(e,t)=>{if(t(await e()))return r(e,t)};e.exports=r,e.exports.default=r},function(e,t,n){"use strict";e.exports=class{async canAppend(e,t){return!0}}},function(e,t,n){"use strict";e.exports=class{constructor(e={}){this._cache=e}set(e,t){this._cache[e]=t}get(e){return this._cache[e]}delete(e){return delete this._cache[e]}add(e){this._cache=Object.assign(this._cache,e)}get length(){return Object.values(this._cache).length}}}]); //# sourceMappingURL=ipfslog.min.js.map \ No newline at end of file diff --git a/examples/browser/loader-visualization.html b/examples/browser/loader-visualization.html index 3a5dcb7d..89f543eb 100644 --- a/examples/browser/loader-visualization.html +++ b/examples/browser/loader-visualization.html @@ -67,19 +67,19 @@

ipfs-log

-

loading simulation

+

loading visualization

https://github.com/orbitdb/ipfs-log
+ - 

     

     
-    
+    
 
     
   
diff --git a/lib/es5/entry-io.js b/lib/es5/entry-io.js
index cd5e520d..3c3f535e 100644
--- a/lib/es5/entry-io.js
+++ b/lib/es5/entry-io.js
@@ -10,12 +10,16 @@ var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/cl
 
 var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
 
-var pWhilst = require('p-whilst');
-
 var pMap = require('p-map');
 
+var pDoWhilst = require('p-do-whilst');
+
 var Entry = require('./entry');
 
+var hasItems = function hasItems(arr) {
+  return arr && arr.length > 0;
+};
+
 var EntryIO =
 /*#__PURE__*/
 function () {
@@ -25,107 +29,91 @@ function () {
 
   (0, _createClass2.default)(EntryIO, null, [{
     key: "fetchParallel",
-
-    /**
-     * Fetch log entries in parallel.
-     * @param {IPFS} ipfs An IPFS instance
-     * @param {string|Array} hashes hashes of the entries to fetch
-     * @param {Object} options
-     * @param {number} options.length How many entries to fetch
-     * @param {Array} options.exclude Entries to not fetch
-     * @param {number} options.concurrency Max concurrent fetch operations
-     * @param {number} options.timeout Maximum time to wait for each fetch operation, in ms
-     * @param {function(hash, entry, parent, depth)} options.onProgressCallback
-     * @returns {Promise>}
-     */
+    // Fetch log graphs in parallel
     value: function () {
       var _fetchParallel = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
-      _regenerator.default.mark(function _callee(ipfs, hashes) {
-        var _ref,
-            _ref$length,
-            length,
-            _ref$exclude,
-            exclude,
-            _ref$concurrency,
-            concurrency,
-            timeout,
-            onProgressCallback,
-            fetchOne,
-            getHashes,
-            uniquelyConcatArrays,
-            flatten,
-            hashesToFetch,
-            entries,
-            _args = arguments;
-
-        return _regenerator.default.wrap(function _callee$(_context) {
+      _regenerator.default.mark(function _callee2(ipfs, hashes, _ref) {
+        var length, _ref$exclude, exclude, concurrency, onProgressCallback, fetchOne, concatArrays, flatten, res;
+
+        return _regenerator.default.wrap(function _callee2$(_context2) {
           while (1) {
-            switch (_context.prev = _context.next) {
+            switch (_context2.prev = _context2.next) {
               case 0:
-                _ref = _args.length > 2 && _args[2] !== undefined ? _args[2] : {}, _ref$length = _ref.length, length = _ref$length === void 0 ? -1 : _ref$length, _ref$exclude = _ref.exclude, exclude = _ref$exclude === void 0 ? [] : _ref$exclude, _ref$concurrency = _ref.concurrency, concurrency = _ref$concurrency === void 0 ? null : _ref$concurrency, timeout = _ref.timeout, onProgressCallback = _ref.onProgressCallback;
-
-                fetchOne = function fetchOne(hash) {
-                  return EntryIO.fetchAll(ipfs, hash, {
-                    length: length,
-                    exclude: exclude,
-                    timeout: timeout,
-                    onProgressCallback: onProgressCallback
-                  });
-                };
+                length = _ref.length, _ref$exclude = _ref.exclude, exclude = _ref$exclude === void 0 ? [] : _ref$exclude, concurrency = _ref.concurrency, onProgressCallback = _ref.onProgressCallback;
+                concurrency = Math.max(concurrency || hashes.length, 1);
 
-                getHashes = function getHashes(e) {
-                  return e.hash;
-                };
+                fetchOne =
+                /*#__PURE__*/
+                function () {
+                  var _ref2 = (0, _asyncToGenerator2.default)(
+                  /*#__PURE__*/
+                  _regenerator.default.mark(function _callee(hash) {
+                    return _regenerator.default.wrap(function _callee$(_context) {
+                      while (1) {
+                        switch (_context.prev = _context.next) {
+                          case 0:
+                            return _context.abrupt("return", EntryIO.fetchAll(ipfs, hash, {
+                              length: length,
+                              exclude: exclude,
+                              onProgressCallback: onProgressCallback,
+                              concurrency: concurrency
+                            }));
+
+                          case 1:
+                          case "end":
+                            return _context.stop();
+                        }
+                      }
+                    }, _callee);
+                  }));
+
+                  return function fetchOne(_x4) {
+                    return _ref2.apply(this, arguments);
+                  };
+                }();
 
-                uniquelyConcatArrays = function uniquelyConcatArrays(arr1, arr2) {
-                  // Add any new entries to arr1
-                  var entryHashes = arr1.map(getHashes);
-                  arr2.forEach(function (entry) {
-                    if (entryHashes.indexOf(entry.hash) === -1) arr1.push(entry);
-                  });
-                  return arr1;
+                concatArrays = function concatArrays(arr1, arr2) {
+                  return arr1.concat(arr2);
                 };
 
                 flatten = function flatten(arr) {
-                  return arr.reduce(uniquelyConcatArrays, []);
+                  return arr.reduce(concatArrays, []);
                 };
 
-                hashesToFetch = Array.isArray(hashes) ? hashes.slice() : [hashes];
-                concurrency = Math.max(concurrency || hashesToFetch.length, 1);
-                _context.next = 9;
-                return pMap(hashesToFetch, fetchOne, {
+                _context2.next = 7;
+                return pMap(hashes, fetchOne, {
                   concurrency: concurrency
                 });
 
-              case 9:
-                entries = _context.sent;
-                return _context.abrupt("return", flatten(entries));
+              case 7:
+                res = _context2.sent;
+                return _context2.abrupt("return", flatten(res));
 
-              case 11:
+              case 9:
               case "end":
-                return _context.stop();
+                return _context2.stop();
             }
           }
-        }, _callee);
+        }, _callee2);
       }));
 
-      function fetchParallel(_x, _x2) {
+      function fetchParallel(_x, _x2, _x3) {
         return _fetchParallel.apply(this, arguments);
       }
 
       return fetchParallel;
     }()
     /**
-     * Fetch log entries sequentially.
-     * @param {IPFS} ipfs An IPFS instance
-     * @param {string|Array} hashes hashes of the entries to fetch
-     * @param {Object} options
-     * @param {number} options.length How many entries to fetch
-     * @param {Array} options.exclude Entries to not fetch
-     * @param {number} options.concurrency Max concurrent fetch operations
-     * @param {number} options.timeout Maximum time to wait for each fetch operation, in ms
-     * @param {function(hash, entry, parent, depth)} options.onProgressCallback
+     * Fetch log entries
+     *
+     * @param {IPFS} [ipfs] An IPFS instance
+     * @param {string} [hash] Multihash of the entry to fetch
+     * @param {string} [parent] Parent of the node to be fetched
+     * @param {Object} [all] Entries to skip
+     * @param {Number} [amount=-1] How many entries to fetch
+     * @param {Number} [depth=0] Current depth of the recursion
+     * @param {function(hash, entry, parent, depth)} onProgressCallback
      * @returns {Promise>}
      */
 
@@ -134,147 +122,266 @@ function () {
     value: function () {
       var _fetchAll = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
-      _regenerator.default.mark(function _callee3(ipfs, hashes) {
-        var _ref2,
-            _ref2$length,
+      _regenerator.default.mark(function _callee5(ipfs, hashes) {
+        var _ref3,
+            _ref3$length,
             length,
-            _ref2$exclude,
+            _ref3$exclude,
             exclude,
-            _ref2$timeout,
-            timeout,
             onProgressCallback,
-            _ref2$concurrency,
+            onStartProgressCallback,
+            _ref3$concurrency,
             concurrency,
+            _ref3$delay,
+            delay,
             result,
             cache,
+            loadingCache,
             loadingQueue,
+            running,
+            maxClock,
+            minClock,
+            loadingQueueHasMore,
             addToLoadingQueue,
-            shouldFetchMore,
+            getNextFromQueue,
             addToExcludeCache,
             fetchEntry,
-            _args3 = arguments;
+            _processQueue,
+            _args5 = arguments;
 
-        return _regenerator.default.wrap(function _callee3$(_context3) {
+        return _regenerator.default.wrap(function _callee5$(_context5) {
           while (1) {
-            switch (_context3.prev = _context3.next) {
+            switch (_context5.prev = _context5.next) {
               case 0:
-                _ref2 = _args3.length > 2 && _args3[2] !== undefined ? _args3[2] : {}, _ref2$length = _ref2.length, length = _ref2$length === void 0 ? -1 : _ref2$length, _ref2$exclude = _ref2.exclude, exclude = _ref2$exclude === void 0 ? [] : _ref2$exclude, _ref2$timeout = _ref2.timeout, timeout = _ref2$timeout === void 0 ? null : _ref2$timeout, onProgressCallback = _ref2.onProgressCallback, _ref2$concurrency = _ref2.concurrency, concurrency = _ref2$concurrency === void 0 ? 32 : _ref2$concurrency;
+                _ref3 = _args5.length > 2 && _args5[2] !== undefined ? _args5[2] : {}, _ref3$length = _ref3.length, length = _ref3$length === void 0 ? -1 : _ref3$length, _ref3$exclude = _ref3.exclude, exclude = _ref3$exclude === void 0 ? [] : _ref3$exclude, onProgressCallback = _ref3.onProgressCallback, onStartProgressCallback = _ref3.onStartProgressCallback, _ref3$concurrency = _ref3.concurrency, concurrency = _ref3$concurrency === void 0 ? 32 : _ref3$concurrency, _ref3$delay = _ref3.delay, delay = _ref3$delay === void 0 ? 0 : _ref3$delay;
                 result = [];
                 cache = {};
-                loadingQueue = Array.isArray(hashes) ? hashes.slice() : [hashes]; // Add a hash to the loading queue
-
-                addToLoadingQueue = function addToLoadingQueue(e) {
-                  return loadingQueue.push(e);
+                loadingCache = {};
+                loadingQueue = Array.isArray(hashes) ? {
+                  0: hashes.slice()
+                } : {
+                  0: [hashes]
                 };
+                running = 0; // keep track of how many entries are being fetched at any time
 
-                shouldFetchMore = function shouldFetchMore() {
-                  return loadingQueue.length > 0 && (result.length < length || length < 0);
-                }; // Add entries that we don't need to fetch to the "cache"
+                maxClock = 0; // keep track of the latest clock time during load
 
+                minClock = 0; // keep track of the minimum clock time during load
+                // Does the loading queue have more to process?
 
-                exclude = exclude && Array.isArray(exclude) ? exclude : [];
+                loadingQueueHasMore = function loadingQueueHasMore() {
+                  return Object.values(loadingQueue).find(hasItems) !== undefined;
+                }; // Add a multihash to the loading queue
 
-                addToExcludeCache = function addToExcludeCache(e) {
-                  if (Entry.isEntry(e)) {
-                    result.push(e);
-                    cache[e.hash] = e;
-                  }
-                };
 
-                exclude.forEach(addToExcludeCache);
+                addToLoadingQueue = function addToLoadingQueue(e, idx) {
+                  if (!loadingCache[e]) {
+                    if (!loadingQueue[idx]) loadingQueue[idx] = [];
 
-                fetchEntry = function fetchEntry() {
-                  var hash = loadingQueue.shift();
+                    if (!loadingQueue[idx].includes(e)) {
+                      loadingQueue[idx].push(e);
+                    }
 
-                  if (!hash || cache[hash]) {
-                    return Promise.resolve();
+                    loadingCache[e] = true;
                   }
+                }; // Get the next items to process from the loading queue
+
+
+                getNextFromQueue = function getNextFromQueue() {
+                  var length = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
+
+                  var getNext = function getNext(res, key, idx) {
+                    var nextItems = loadingQueue[key];
+
+                    while (nextItems.length > 0 && res.length < length) {
+                      var hash = nextItems.shift();
+                      res.push(hash);
+                    }
+
+                    if (nextItems.length === 0) {
+                      delete loadingQueue[key];
+                    }
+
+                    return res;
+                  };
+
+                  return Object.keys(loadingQueue).reduce(getNext, []);
+                }; // Add entries that we don't need to fetch to the "cache"
+
 
-                  return new Promise(
+                addToExcludeCache = function addToExcludeCache(e) {
+                  cache[e.hash] = true;
+                }; // Fetch one entry and add it to the results
+
+
+                fetchEntry =
+                /*#__PURE__*/
+                function () {
+                  var _ref4 = (0, _asyncToGenerator2.default)(
                   /*#__PURE__*/
-                  function () {
-                    var _ref3 = (0, _asyncToGenerator2.default)(
-                    /*#__PURE__*/
-                    _regenerator.default.mark(function _callee2(resolve, reject) {
-                      var timer, addToResults, entry;
-                      return _regenerator.default.wrap(function _callee2$(_context2) {
-                        while (1) {
-                          switch (_context2.prev = _context2.next) {
-                            case 0:
-                              // Resolve the promise after a timeout (if given) in order to
-                              // not get stuck loading a block that is unreachable
-                              timer = timeout ? setTimeout(function () {
-                                console.warn("Warning: Couldn't fetch entry '".concat(hash, "', request timed out (").concat(timeout, "ms)"));
-                                resolve();
-                              }, timeout) : null;
-
-                              addToResults = function addToResults(entry) {
-                                if (Entry.isEntry(entry)) {
+                  _regenerator.default.mark(function _callee3(hash) {
+                    var addToResults, entry, sleep;
+                    return _regenerator.default.wrap(function _callee3$(_context3) {
+                      while (1) {
+                        switch (_context3.prev = _context3.next) {
+                          case 0:
+                            if (!(!hash || cache[hash])) {
+                              _context3.next = 2;
+                              break;
+                            }
+
+                            return _context3.abrupt("return");
+
+                          case 2:
+                            addToResults = function addToResults(entry) {
+                              if (Entry.isEntry(entry)) {
+                                var ts = entry.clock.time; // Update min/max clocks
+
+                                maxClock = Math.max(maxClock, ts);
+                                minClock = result.length > 0 ? Math.min(result[result.length - 1].clock.time, minClock) : maxClock;
+                                var isLater = result.length >= length && ts >= minClock;
+
+                                var calculateIndex = function calculateIndex(idx) {
+                                  return maxClock - ts + (idx + 1) * idx;
+                                }; // Add the entry to the results if 
+                                // 1) we're fetching all entries
+                                // 2) results is not filled yet
+                                // the clock of the entry is later than current known minimum clock time
+
+
+                                if (length < 0 || result.length < length || isLater) {
+                                  result.push(entry);
+                                  cache[hash] = true;
+                                }
+
+                                if (length < 0) {
+                                  // If we're fetching all entries (length === -1), adds nexts and refs to the queue
                                   entry.next.forEach(addToLoadingQueue);
                                   entry.refs.forEach(addToLoadingQueue);
-                                  result.push(entry);
-                                  cache[hash] = entry;
+                                } else {
+                                  // If we're fetching entries up to certain length,
+                                  // fetch the next if result is filled up, to make sure we "check"
+                                  // the next entry if its clock is later than what we have in the result
+                                  if (result.length <= length || ts >= minClock) {
+                                    entry.next.forEach(function (e) {
+                                      return addToLoadingQueue(e, calculateIndex(0));
+                                    });
+                                  }
 
-                                  if (onProgressCallback) {
-                                    onProgressCallback(hash, entry, result.length, result, loadingQueue);
+                                  if (result.length + entry.refs.length <= length) {
+                                    entry.refs.forEach(function (e, i) {
+                                      return addToLoadingQueue(e, calculateIndex(i));
+                                    });
                                   }
                                 }
-                              }; // // Load the entry
+                              }
+                            };
+
+                            if (onStartProgressCallback) {
+                              onStartProgressCallback(hash, null, result.length, result, loadingQueue);
+                            } // Load the entry
+
 
+                            _context3.next = 6;
+                            return Entry.fromMultihash(ipfs, hash);
 
-                              _context2.prev = 2;
-                              _context2.next = 5;
-                              return Entry.fromMultihash(ipfs, hash);
+                          case 6:
+                            entry = _context3.sent;
+                            // Add it to the results
+                            addToResults(entry);
 
-                            case 5:
-                              entry = _context2.sent;
-                              addToResults(entry);
-                              resolve();
-                              _context2.next = 13;
+                            if (onProgressCallback) {
+                              onProgressCallback(hash, entry, result.length, result, loadingQueue);
+                            } // Simulate network latency (for debugging purposes)
+
+
+                            if (!(delay > 0)) {
+                              _context3.next = 13;
                               break;
+                            }
 
-                            case 10:
-                              _context2.prev = 10;
-                              _context2.t0 = _context2["catch"](2);
-                              reject(_context2.t0);
+                            sleep = function sleep() {
+                              var ms = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
+                              return new Promise(function (resolve) {
+                                return setTimeout(resolve, ms);
+                              });
+                            };
 
-                            case 13:
-                              _context2.prev = 13;
-                              clearTimeout(timer);
-                              return _context2.finish(13);
+                            _context3.next = 13;
+                            return sleep(delay);
 
-                            case 16:
-                            case "end":
-                              return _context2.stop();
-                          }
+                          case 13:
+                            return _context3.abrupt("return");
+
+                          case 14:
+                          case "end":
+                            return _context3.stop();
                         }
-                      }, _callee2, null, [[2, 10, 13, 16]]);
-                    }));
+                      }
+                    }, _callee3);
+                  }));
 
-                    return function (_x5, _x6) {
-                      return _ref3.apply(this, arguments);
-                    };
-                  }());
-                };
+                  return function fetchEntry(_x7) {
+                    return _ref4.apply(this, arguments);
+                  };
+                }(); // One loop of processing the loading queue
 
-                _context3.next = 12;
-                return pWhilst(shouldFetchMore, fetchEntry);
 
-              case 12:
-                // Free memory to avoid minor GC
-                cache = {};
-                loadingQueue = [];
-                return _context3.abrupt("return", result);
+                _processQueue =
+                /*#__PURE__*/
+                function () {
+                  var _ref5 = (0, _asyncToGenerator2.default)(
+                  /*#__PURE__*/
+                  _regenerator.default.mark(function _callee4() {
+                    var nexts;
+                    return _regenerator.default.wrap(function _callee4$(_context4) {
+                      while (1) {
+                        switch (_context4.prev = _context4.next) {
+                          case 0:
+                            if (!(running < concurrency)) {
+                              _context4.next = 6;
+                              break;
+                            }
+
+                            nexts = getNextFromQueue(concurrency);
+                            running += nexts.length;
+                            _context4.next = 5;
+                            return pMap(nexts, fetchEntry);
+
+                          case 5:
+                            running -= nexts.length;
+
+                          case 6:
+                          case "end":
+                            return _context4.stop();
+                        }
+                      }
+                    }, _callee4);
+                  }));
+
+                  return function _processQueue() {
+                    return _ref5.apply(this, arguments);
+                  };
+                }(); // Add entries to exclude from processing to the cache before we start
+
+
+                exclude.forEach(addToExcludeCache); // Fetch entries
+
+                _context5.next = 17;
+                return pDoWhilst(_processQueue, loadingQueueHasMore);
+
+              case 17:
+                return _context5.abrupt("return", result);
 
-              case 15:
+              case 18:
               case "end":
-                return _context3.stop();
+                return _context5.stop();
             }
           }
-        }, _callee3);
+        }, _callee5);
       }));
 
-      function fetchAll(_x3, _x4) {
+      function fetchAll(_x5, _x6) {
         return _fetchAll.apply(this, arguments);
       }
 
diff --git a/lib/es5/lamport-clock.js b/lib/es5/lamport-clock.js
index f64116ed..c1015cfa 100644
--- a/lib/es5/lamport-clock.js
+++ b/lib/es5/lamport-clock.js
@@ -37,8 +37,8 @@ function () {
       // Calculate the "distance" based on the clock, ie. lower or greater
       var dist = a.time - b.time; // If the sequence number is the same (concurrent events),
       // and the IDs are different, take the one with a "lower" id
+      // if (dist === 0 && a.id !== b.id) return a.id < b.id ? -1 : 1
 
-      if (dist === 0 && a.id !== b.id) return a.id < b.id ? -1 : 1;
       return dist;
     }
   }]);
diff --git a/lib/es5/log-io.js b/lib/es5/log-io.js
index 5f093740..0b817abf 100644
--- a/lib/es5/log-io.js
+++ b/lib/es5/log-io.js
@@ -16,6 +16,11 @@ var EntryIO = require('./entry-io');
 
 var Clock = require('./lamport-clock');
 
+var Sorting = require('./log-sorting');
+
+var LastWriteWins = Sorting.LastWriteWins,
+    NoZeroes = Sorting.NoZeroes;
+
 var LogError = require('./log-errors');
 
 var _require = require('./utils'),
@@ -121,25 +126,14 @@ function () {
     value: function () {
       var _fromMultihash = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
-      _regenerator.default.mark(function _callee2(ipfs, hash) {
-        var _ref2,
-            _ref2$length,
-            length,
-            exclude,
-            onProgressCallback,
-            timeout,
-            logData,
-            entries,
-            clock,
-            finalEntries,
-            heads,
-            _args2 = arguments;
+      _regenerator.default.mark(function _callee2(ipfs, hash, _ref2) {
+        var _ref2$length, length, _ref2$exclude, exclude, concurrency, sortFn, onProgressCallback, logData, isHead, all, logId, entries, heads;
 
         return _regenerator.default.wrap(function _callee2$(_context2) {
           while (1) {
             switch (_context2.prev = _context2.next) {
               case 0:
-                _ref2 = _args2.length > 2 && _args2[2] !== undefined ? _args2[2] : {}, _ref2$length = _ref2.length, length = _ref2$length === void 0 ? -1 : _ref2$length, exclude = _ref2.exclude, onProgressCallback = _ref2.onProgressCallback, timeout = _ref2.timeout;
+                _ref2$length = _ref2.length, length = _ref2$length === void 0 ? -1 : _ref2$length, _ref2$exclude = _ref2.exclude, exclude = _ref2$exclude === void 0 ? [] : _ref2$exclude, concurrency = _ref2.concurrency, sortFn = _ref2.sortFn, onProgressCallback = _ref2.onProgressCallback;
 
                 if (isDefined(ipfs)) {
                   _context2.next = 3;
@@ -173,36 +167,33 @@ function () {
                 throw LogError.NotALogError();
 
               case 10:
-                _context2.next = 12;
+                // Use user provided sorting function or the default one
+                sortFn = sortFn || NoZeroes(LastWriteWins);
+
+                isHead = function isHead(e) {
+                  return logData.heads.includes(e.hash);
+                };
+
+                _context2.next = 14;
                 return EntryIO.fetchAll(ipfs, logData.heads, {
                   length: length,
                   exclude: exclude,
-                  onProgressCallback: onProgressCallback,
-                  timeout: timeout
+                  concurrency: concurrency,
+                  onProgressCallback: onProgressCallback
                 });
 
-              case 12:
-                entries = _context2.sent;
-                // Find latest clock
-                clock = entries.reduce(function (clock, entry) {
-                  if (entry.clock.time > clock.time) {
-                    return new Clock(entry.clock.id, entry.clock.time);
-                  }
-
-                  return clock;
-                }, new Clock(logData.id));
-                finalEntries = entries.slice().sort(Entry.compare);
-                heads = finalEntries.filter(function (e) {
-                  return logData.heads.includes(e.hash);
-                });
+              case 14:
+                all = _context2.sent;
+                logId = logData.id;
+                entries = length > -1 ? last(all.sort(sortFn), length) : all;
+                heads = entries.filter(isHead);
                 return _context2.abrupt("return", {
-                  id: logData.id,
-                  values: finalEntries,
-                  heads: heads,
-                  clock: clock
+                  logId: logId,
+                  entries: entries,
+                  heads: heads
                 });
 
-              case 17:
+              case 19:
               case "end":
                 return _context2.stop();
             }
@@ -210,7 +201,7 @@ function () {
         }, _callee2);
       }));
 
-      function fromMultihash(_x3, _x4) {
+      function fromMultihash(_x3, _x4, _x5) {
         return _fromMultihash.apply(this, arguments);
       }
 
@@ -224,7 +215,6 @@ function () {
      * @param {number} options.length How many items to include in the log
      * @param {Array} options.exclude Entries to not fetch (cached)
      * @param {function(hash, entry, parent, depth)} options.onProgressCallback
-     * @param {number} options.timeout Timeout for fetching a log entry from IPFS
      */
 
   }, {
@@ -233,13 +223,13 @@ function () {
       var _fromEntryHash = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee3(ipfs, hash, _ref3) {
-        var _ref3$length, length, exclude, onProgressCallback, timeout, hashes, entries, sliced;
+        var _ref3$length, length, _ref3$exclude, exclude, concurrency, onProgressCallback, hashes, all, entries;
 
         return _regenerator.default.wrap(function _callee3$(_context3) {
           while (1) {
             switch (_context3.prev = _context3.next) {
               case 0:
-                _ref3$length = _ref3.length, length = _ref3$length === void 0 ? -1 : _ref3$length, exclude = _ref3.exclude, onProgressCallback = _ref3.onProgressCallback, timeout = _ref3.timeout;
+                _ref3$length = _ref3.length, length = _ref3$length === void 0 ? -1 : _ref3$length, _ref3$exclude = _ref3.exclude, exclude = _ref3$exclude === void 0 ? [] : _ref3$exclude, concurrency = _ref3.concurrency, onProgressCallback = _ref3.onProgressCallback;
 
                 if (isDefined(ipfs)) {
                   _context3.next = 3;
@@ -265,17 +255,17 @@ function () {
                 return EntryIO.fetchParallel(ipfs, hashes, {
                   length: length,
                   exclude: exclude,
-                  onProgressCallback: onProgressCallback,
-                  timeout: timeout
+                  concurrency: concurrency,
+                  onProgressCallback: onProgressCallback
                 });
 
               case 9:
-                entries = _context3.sent;
+                all = _context3.sent;
                 // Cap the result at the right size by taking the last n entries,
                 // or if given length is -1, then take all
-                sliced = length > -1 ? last(entries, length) : entries;
+                entries = length > -1 ? last(all, length) : all;
                 return _context3.abrupt("return", {
-                  values: sliced
+                  entries: entries
                 });
 
               case 12:
@@ -286,7 +276,7 @@ function () {
         }, _callee3);
       }));
 
-      function fromEntryHash(_x5, _x6, _x7) {
+      function fromEntryHash(_x6, _x7, _x8) {
         return _fromEntryHash.apply(this, arguments);
       }
 
@@ -299,7 +289,6 @@ function () {
      * @param {json} json A json object containing valid log data
      * @param {Object} options
      * @param {number} options.length How many entries to include
-     * @param {number} options.timeout Maximum time to wait for each fetch operation, in ms
      * @param {function(hash, entry, parent, depth)} options.onProgressCallback
      **/
 
@@ -309,13 +298,13 @@ function () {
       var _fromJSON = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee4(ipfs, json, _ref4) {
-        var _ref4$length, length, timeout, onProgressCallback, headHashes, entries, finalEntries;
+        var _ref4$length, length, concurrency, onProgressCallback, id, heads, headHashes, all, entries;
 
         return _regenerator.default.wrap(function _callee4$(_context4) {
           while (1) {
             switch (_context4.prev = _context4.next) {
               case 0:
-                _ref4$length = _ref4.length, length = _ref4$length === void 0 ? -1 : _ref4$length, timeout = _ref4.timeout, onProgressCallback = _ref4.onProgressCallback;
+                _ref4$length = _ref4.length, length = _ref4$length === void 0 ? -1 : _ref4$length, concurrency = _ref4.concurrency, onProgressCallback = _ref4.onProgressCallback;
 
                 if (isDefined(ipfs)) {
                   _context4.next = 3;
@@ -325,28 +314,27 @@ function () {
                 throw LogError.IPFSNotDefinedError();
 
               case 3:
-                headHashes = json.heads.map(function (e) {
+                id = json.id, heads = json.heads;
+                headHashes = heads.map(function (e) {
                   return e.hash;
                 });
-                _context4.next = 6;
+                _context4.next = 7;
                 return EntryIO.fetchParallel(ipfs, headHashes, {
                   length: length,
-                  exclude: [],
-                  concurrency: 16,
-                  timeout: timeout,
+                  concurrency: concurrency,
                   onProgressCallback: onProgressCallback
                 });
 
-              case 6:
-                entries = _context4.sent;
-                finalEntries = entries.slice().sort(Entry.compare);
+              case 7:
+                all = _context4.sent;
+                entries = all.sort(Entry.compare);
                 return _context4.abrupt("return", {
-                  id: json.id,
-                  values: finalEntries,
-                  heads: json.heads
+                  logId: id,
+                  entries: entries,
+                  heads: heads
                 });
 
-              case 9:
+              case 10:
               case "end":
                 return _context4.stop();
             }
@@ -354,7 +342,7 @@ function () {
         }, _callee4);
       }));
 
-      function fromJSON(_x8, _x9, _x10) {
+      function fromJSON(_x9, _x10, _x11) {
         return _fromJSON.apply(this, arguments);
       }
 
@@ -376,13 +364,13 @@ function () {
       var _fromEntry = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee5(ipfs, sourceEntries, _ref5) {
-        var _ref5$length, length, exclude, onProgressCallback, timeout, hashes, entries, combined, uniques, sliced, missingSourceEntries, replaceInFront, result;
+        var _ref5$length, length, _ref5$exclude, exclude, concurrency, onProgressCallback, hashes, all, combined, uniques, sliced, missingSourceEntries, replaceInFront, entries, logId;
 
         return _regenerator.default.wrap(function _callee5$(_context5) {
           while (1) {
             switch (_context5.prev = _context5.next) {
               case 0:
-                _ref5$length = _ref5.length, length = _ref5$length === void 0 ? -1 : _ref5$length, exclude = _ref5.exclude, onProgressCallback = _ref5.onProgressCallback, timeout = _ref5.timeout;
+                _ref5$length = _ref5.length, length = _ref5$length === void 0 ? -1 : _ref5$length, _ref5$exclude = _ref5.exclude, exclude = _ref5$exclude === void 0 ? [] : _ref5$exclude, concurrency = _ref5.concurrency, onProgressCallback = _ref5.onProgressCallback;
 
                 if (isDefined(ipfs)) {
                   _context5.next = 3;
@@ -423,14 +411,14 @@ function () {
                 return EntryIO.fetchParallel(ipfs, hashes, {
                   length: length,
                   exclude: exclude,
-                  onProgressCallback: onProgressCallback,
-                  timeout: timeout
+                  concurrency: concurrency,
+                  onProgressCallback: onProgressCallback
                 });
 
               case 12:
-                entries = _context5.sent;
+                all = _context5.sent;
                 // Combine the fetches with the source entries and take only uniques
-                combined = sourceEntries.concat(entries);
+                combined = sourceEntries.concat(all).concat(exclude);
                 uniques = findUniques(combined, 'hash').sort(Entry.compare); // Cap the result at the right size by taking the last n entries
 
                 sliced = uniques.slice(length > -1 ? -length : -uniques.length); // Make sure that the given input entries are present in the result
@@ -445,13 +433,14 @@ function () {
                 // as many elements from the array before inserting the original entries
 
 
-                result = replaceInFront(sliced, missingSourceEntries);
+                entries = replaceInFront(sliced, missingSourceEntries);
+                logId = entries[entries.length - 1].id;
                 return _context5.abrupt("return", {
-                  id: result[result.length - 1].id,
-                  values: result
+                  logId: logId,
+                  entries: entries
                 });
 
-              case 20:
+              case 21:
               case "end":
                 return _context5.stop();
             }
@@ -459,7 +448,7 @@ function () {
         }, _callee5);
       }));
 
-      function fromEntry(_x11, _x12, _x13) {
+      function fromEntry(_x12, _x13, _x14) {
         return _fromEntry.apply(this, arguments);
       }
 
diff --git a/lib/es5/log.js b/lib/es5/log.js
index e946b850..33607658 100644
--- a/lib/es5/log.js
+++ b/lib/es5/log.js
@@ -18,7 +18,7 @@ var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/ge
 
 var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
 
-var pEachSeries = require('p-each-series');
+var pMap = require('p-map');
 
 var GSet = require('./g-set');
 
@@ -143,8 +143,9 @@ function (_GSet) {
 
     _this._identity = identity; // Add entries to the internal cache
 
-    entries = entries || [];
-    _this._entryIndex = new EntryIndex(entries.reduce(uniqueEntriesReducer, {})); // Set heads if not passed as an argument
+    var uniqueEntries = (entries || []).reduce(uniqueEntriesReducer, {});
+    _this._entryIndex = new EntryIndex(uniqueEntries);
+    entries = Object.values(uniqueEntries) || []; // Set heads if not passed as an argument
 
     heads = heads || Log.findHeads(entries);
     _this._headsIndex = heads.reduce(uniqueEntriesReducer, {}); // Index of all next pointers in this log
@@ -209,73 +210,10 @@ function (_GSet) {
     value: function has(entry) {
       return this._entryIndex.get(entry.hash || entry) !== undefined;
     }
-  }, {
-    key: "getNextAndTraverse",
-    value: function getNextAndTraverse(rootEntries, amount) {
-      var _this2 = this;
-
-      var getFirstNextPointer = function getFirstNextPointer(entry) {
-        return entry.refs[0];
-      };
-
-      var stack = rootEntries.map(getFirstNextPointer).map(function (e) {
-        return _this2.get(e);
-      }).filter(isDefined); // Cache for checking if we've processed an entry already
-
-      var traversed = {}; // End result
-
-      var result = {}; // We keep a counter to check if we have traversed requested amount of entries
-
-      var count = 0; // Named function for getting an entry from the log
-
-      var getEntry = function getEntry(e) {
-        return _this2.get(e);
-      }; // Add an entry to the stack and traversed nodes index
-
-
-      var addToStack = function addToStack(entry) {
-        // If we've already processed the entry, don't add it to the stack
-        if (!entry || traversed[entry.hash]) {
-          return;
-        } // Add the entry in front of the stack and sort
-
-
-        stack = [entry].concat((0, _toConsumableArray2.default)(stack)).sort(_this2._sortFn).reverse(); // Add to the cache of processed entries
-
-        traversed[entry.hash] = true;
-      };
-
-      var addEntry = function addEntry(rootEntry) {
-        result[rootEntry.hash] = rootEntry;
-        traversed[rootEntry.hash] = true;
-        count++;
-      };
-
-      rootEntries.forEach(addEntry); // Start traversal
-      // Process stack until it's empty (traversed the full log)
-      // or when we have the requested amount of entries
-      // If requested entry amount is -1, traverse all
-
-      while (stack.length > 0 && (count < amount || amount < 0)) {
-        // eslint-disable-line no-unmodified-loop-condition
-        // Get the next element from the stack
-        var entry = stack.shift(); // Add to the result
-        // result[entry.hash] = entry
-
-        addEntry(entry); // if ((amount !== -1) && (++count >= amount)) break
-        // Add entry's next references to the stack
-
-        var entries = entry.next.map(getEntry);
-        var defined = entries.filter(isDefined);
-        defined.forEach(addToStack);
-      }
-
-      return result;
-    }
   }, {
     key: "traverse",
     value: function traverse(rootEntries) {
-      var _this3 = this;
+      var _this2 = this;
 
       var amount = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : -1;
       var endHash = arguments.length > 2 ? arguments[2] : undefined;
@@ -288,7 +226,7 @@ function (_GSet) {
       var count = 0; // Named function for getting an entry from the log
 
       var getEntry = function getEntry(e) {
-        return _this3.get(e);
+        return _this2.get(e);
       }; // Add an entry to the stack and traversed nodes index
 
 
@@ -299,7 +237,7 @@ function (_GSet) {
         } // Add the entry in front of the stack and sort
 
 
-        stack = [entry].concat((0, _toConsumableArray2.default)(stack)).sort(_this3._sortFn).reverse(); // Add to the cache of processed entries
+        stack = [entry].concat((0, _toConsumableArray2.default)(stack)).sort(_this2._sortFn).reverse(); // Add to the cache of processed entries
 
         traversed[entry.hash] = true;
       };
@@ -345,18 +283,15 @@ function (_GSet) {
       var _append = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee(data) {
-        var _this4 = this;
+        var _this3 = this;
 
         var pointerCount,
             newTime,
-            heads,
-            sortedHeadIndex,
-            nexts,
             all,
             getEveryPow2,
             references,
-            refSet,
-            delRef,
+            nexts,
+            isNext,
             refs,
             entry,
             canAppend,
@@ -369,63 +304,62 @@ function (_GSet) {
                 // Update the clock (find the latest clock)
                 newTime = Math.max(this.clock.time, this.heads.reduce(maxClockTimeReducer, 0)) + 1;
                 this._clock = new Clock(this.clock.id, newTime);
-                heads = this.traverse(this.heads, this.heads.length);
-                sortedHeadIndex = this.heads.reverse().reduce(uniqueEntriesReducer, {});
-                nexts = Object.keys(Object.assign({}, sortedHeadIndex, heads));
-                all = Object.values(this.getNextAndTraverse(this.heads, pointerCount));
+                all = Object.values(this.traverse(this.heads, pointerCount)); // If pointer count is 4, returns 2
+                // If pointer count is 8, returns 3 references
+                // If pointer count is 512, returns 9 references
+                // If pointer count is 2048, returns 11 references
 
                 getEveryPow2 = function getEveryPow2(maxDistance) {
                   var entries = new Set();
 
                   for (var i = 1; i <= maxDistance; i *= 2) {
                     var index = Math.min(i - 1, all.length - 1);
-                    var ref = all[index];
-                    entries.add(ref);
+                    entries.add(all[index]);
                   }
 
                   return entries;
-                }; // If pointer count is 4, returns 2
-                // If pointer count is 8, returns 3 references
-                // If pointer count is 512, returns 9 references
-                // If pointer count is 2048, returns 11 references
+                };
 
+                references = getEveryPow2(Math.min(pointerCount, all.length)); // Always include the last known reference
 
-                references = getEveryPow2(Math.min(pointerCount, all.length));
-                refSet = new Set(references); // Always include the last known reference
+                if (all.length < pointerCount && all[all.length - 1]) {
+                  references.add(all[all.length - 1]);
+                } // Create the next pointers from heads
 
-                if (all.length < pointerCount && all[all.length - 1]) refSet.add(all[all.length - 1]); // Delete the heads from the refs
 
-                delRef = function delRef(e) {
-                  return refSet.delete(e);
-                };
+                nexts = Object.keys(this.heads.reverse().reduce(uniqueEntriesReducer, {}));
 
-                nexts.forEach(delRef);
-                refs = Array.from(refSet).map(getHash); // @TODO: Split Entry.create into creating object, checking permission, signing and then posting to IPFS
+                isNext = function isNext(e) {
+                  return !nexts.includes(e);
+                }; // Delete the heads from the refs
+
+
+                refs = Array.from(references).map(getHash).filter(isNext); // @TODO: Split Entry.create into creating object, checking permission, signing and then posting to IPFS
                 // Create the entry and add it to the internal cache
 
-                _context.next = 16;
+                _context.next = 12;
                 return Entry.create(this._storage, this._identity, this.id, data, nexts, this.clock, refs);
 
-              case 16:
+              case 12:
                 entry = _context.sent;
-                _context.next = 19;
+                _context.next = 15;
                 return this._access.canAppend(entry, this._identity.provider);
 
-              case 19:
+              case 15:
                 canAppend = _context.sent;
 
                 if (canAppend) {
-                  _context.next = 22;
+                  _context.next = 18;
                   break;
                 }
 
                 throw new Error("Could not append entry, key \"".concat(this._identity.id, "\" is not allowed to write to the log"));
 
-              case 22:
+              case 18:
                 this._entryIndex.set(entry.hash, entry);
 
                 nexts.forEach(function (e) {
-                  return _this4._nextsIndex[e] = entry.hash;
+                  return _this3._nextsIndex[e] = entry.hash;
                 });
                 this._headsIndex = {};
                 this._headsIndex[entry.hash] = entry; // Update the length
@@ -433,7 +367,7 @@ function (_GSet) {
                 this._length++;
                 return _context.abrupt("return", entry);
 
-              case 28:
+              case 24:
               case "end":
                 return _context.stop();
             }
@@ -574,7 +508,7 @@ function (_GSet) {
       var _join = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee7(log) {
-        var _this5 = this;
+        var _this4 = this;
 
         var size,
             newItems,
@@ -637,7 +571,7 @@ function (_GSet) {
                         switch (_context4.prev = _context4.next) {
                           case 0:
                             _context4.next = 2;
-                            return _this5._access.canAppend(entry, identityProvider);
+                            return _this4._access.canAppend(entry, identityProvider);
 
                           case 2:
                             canAppend = _context4.sent;
@@ -703,7 +637,7 @@ function (_GSet) {
 
                 entriesToJoin = Object.values(newItems);
                 _context7.next = 14;
-                return pEachSeries(entriesToJoin,
+                return pMap(entriesToJoin,
                 /*#__PURE__*/
                 function () {
                   var _ref5 = (0, _asyncToGenerator2.default)(
@@ -731,18 +665,20 @@ function (_GSet) {
                   return function (_x5) {
                     return _ref5.apply(this, arguments);
                   };
-                }());
+                }(), {
+                  concurrency: 100
+                });
 
               case 14:
                 // Update the internal next pointers index
                 addToNextsIndex = function addToNextsIndex(e) {
-                  var entry = _this5.get(e.hash);
+                  var entry = _this4.get(e.hash);
 
-                  if (!entry) _this5._length++;
+                  if (!entry) _this4._length++;
                   /* istanbul ignore else */
 
                   e.next.forEach(function (a) {
-                    return _this5._nextsIndex[a] = e.hash;
+                    return _this4._nextsIndex[a] = e.hash;
                   });
                 };
 
@@ -758,7 +694,7 @@ function (_GSet) {
                 };
 
                 notInCurrentNexts = function notInCurrentNexts(e) {
-                  return !_this5._nextsIndex[e.hash];
+                  return !_this4._nextsIndex[e.hash];
                 };
 
                 nextsFromNewItems = Object.values(newItems).map(getNextPointers).reduce(flatMap, []);
@@ -845,10 +781,10 @@ function (_GSet) {
   }, {
     key: "toString",
     value: function toString(payloadMapper) {
-      var _this6 = this;
+      var _this5 = this;
 
       return this.values.slice().reverse().map(function (e, idx) {
-        var parents = Entry.findChildren(e, _this6.values);
+        var parents = Entry.findChildren(e, _this5.values);
         var len = parents.length;
         var padding = new Array(Math.max(len - 1, 0));
         padding = len > 1 ? padding.fill('  ') : padding;
@@ -869,7 +805,7 @@ function (_GSet) {
 
     /**
      * Get the log's multihash.
-     * @returns {Promise} Multihash of the Log as Base58 encoded stringx
+     * @returns {Promise} Multihash of the Log as Base58 encoded string.
      */
     value: function toMultihash() {
       var _ref6 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
@@ -975,40 +911,45 @@ function (_GSet) {
             access,
             _ref7$length,
             length,
+            _ref7$exclude,
             exclude,
-            onProgressCallback,
+            concurrency,
             sortFn,
-            timeout,
-            format,
-            data,
+            onProgressCallback,
+            _ref8,
+            logId,
+            entries,
+            heads,
             _args8 = arguments;
 
         return _regenerator.default.wrap(function _callee8$(_context8) {
           while (1) {
             switch (_context8.prev = _context8.next) {
               case 0:
-                _ref7 = _args8.length > 3 && _args8[3] !== undefined ? _args8[3] : {}, access = _ref7.access, _ref7$length = _ref7.length, length = _ref7$length === void 0 ? -1 : _ref7$length, exclude = _ref7.exclude, onProgressCallback = _ref7.onProgressCallback, sortFn = _ref7.sortFn, timeout = _ref7.timeout, format = _ref7.format;
+                _ref7 = _args8.length > 3 && _args8[3] !== undefined ? _args8[3] : {}, access = _ref7.access, _ref7$length = _ref7.length, length = _ref7$length === void 0 ? -1 : _ref7$length, _ref7$exclude = _ref7.exclude, exclude = _ref7$exclude === void 0 ? [] : _ref7$exclude, concurrency = _ref7.concurrency, sortFn = _ref7.sortFn, onProgressCallback = _ref7.onProgressCallback;
                 _context8.next = 3;
                 return LogIO.fromMultihash(ipfs, hash, {
                   length: length,
                   exclude: exclude,
                   onProgressCallback: onProgressCallback,
-                  timeout: timeout,
-                  format: format
+                  concurrency: concurrency,
+                  sortFn: sortFn
                 });
 
               case 3:
-                data = _context8.sent;
+                _ref8 = _context8.sent;
+                logId = _ref8.logId;
+                entries = _ref8.entries;
+                heads = _ref8.heads;
                 return _context8.abrupt("return", new Log(ipfs, identity, {
-                  logId: data.id,
+                  logId: logId,
                   access: access,
-                  entries: data.values,
-                  heads: data.heads,
-                  clock: new Clock(data.clock.id, data.clock.time),
+                  entries: entries,
+                  heads: heads,
                   sortFn: sortFn
                 }));
 
-              case 5:
+              case 8:
               case "end":
                 return _context8.stop();
             }
@@ -1034,7 +975,6 @@ function (_GSet) {
      * @param {Array} options.exclude Entries to not fetch (cached)
      * @param {function(hash, entry, parent, depth)} options.onProgressCallback
      * @param {Function} options.sortFn The sort function - by default LastWriteWins
-     * @param {number} options.timeout Timeout for fetching a log entry from IPFS
      * @return {Promise} New Log
      */
 
@@ -1043,32 +983,45 @@ function (_GSet) {
     value: function () {
       var _fromEntryHash = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
-      _regenerator.default.mark(function _callee9(ipfs, identity, hash, _ref8) {
-        var logId, access, _ref8$length, length, exclude, onProgressCallback, sortFn, timeout, data;
+      _regenerator.default.mark(function _callee9(ipfs, identity, hash) {
+        var _ref9,
+            logId,
+            access,
+            _ref9$length,
+            length,
+            _ref9$exclude,
+            exclude,
+            concurrency,
+            sortFn,
+            onProgressCallback,
+            _ref10,
+            entries,
+            _args9 = arguments;
 
         return _regenerator.default.wrap(function _callee9$(_context9) {
           while (1) {
             switch (_context9.prev = _context9.next) {
               case 0:
-                logId = _ref8.logId, access = _ref8.access, _ref8$length = _ref8.length, length = _ref8$length === void 0 ? -1 : _ref8$length, exclude = _ref8.exclude, onProgressCallback = _ref8.onProgressCallback, sortFn = _ref8.sortFn, timeout = _ref8.timeout;
+                _ref9 = _args9.length > 3 && _args9[3] !== undefined ? _args9[3] : {}, logId = _ref9.logId, access = _ref9.access, _ref9$length = _ref9.length, length = _ref9$length === void 0 ? -1 : _ref9$length, _ref9$exclude = _ref9.exclude, exclude = _ref9$exclude === void 0 ? [] : _ref9$exclude, concurrency = _ref9.concurrency, sortFn = _ref9.sortFn, onProgressCallback = _ref9.onProgressCallback;
                 _context9.next = 3;
                 return LogIO.fromEntryHash(ipfs, hash, {
                   length: length,
                   exclude: exclude,
-                  onProgressCallback: onProgressCallback,
-                  timeout: timeout
+                  concurrency: concurrency,
+                  onProgressCallback: onProgressCallback
                 });
 
               case 3:
-                data = _context9.sent;
+                _ref10 = _context9.sent;
+                entries = _ref10.entries;
                 return _context9.abrupt("return", new Log(ipfs, identity, {
                   logId: logId,
                   access: access,
-                  entries: data.values,
+                  entries: entries,
                   sortFn: sortFn
                 }));
 
-              case 5:
+              case 6:
               case "end":
                 return _context9.stop();
             }
@@ -1076,7 +1029,7 @@ function (_GSet) {
         }, _callee9);
       }));
 
-      function fromEntryHash(_x9, _x10, _x11, _x12) {
+      function fromEntryHash(_x9, _x10, _x11) {
         return _fromEntryHash.apply(this, arguments);
       }
 
@@ -1090,7 +1043,6 @@ function (_GSet) {
      * @param {Object} options
      * @param {AccessController} options.access The access controller instance
      * @param {number} options.length How many entries to include in the log
-     * @param {number} options.timeout Maximum time to wait for each fetch operation, in ms
      * @param {function(hash, entry, parent, depth)} [options.onProgressCallback]
      * @param {Function} options.sortFn The sort function - by default LastWriteWins
      * @return {Promise} New Log
@@ -1102,38 +1054,40 @@ function (_GSet) {
       var _fromJSON = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee10(ipfs, identity, json) {
-        var _ref9,
+        var _ref11,
             access,
-            _ref9$length,
+            _ref11$length,
             length,
-            timeout,
-            onProgressCallback,
             sortFn,
-            data,
+            onProgressCallback,
+            _ref12,
+            logId,
+            entries,
             _args10 = arguments;
 
         return _regenerator.default.wrap(function _callee10$(_context10) {
           while (1) {
             switch (_context10.prev = _context10.next) {
               case 0:
-                _ref9 = _args10.length > 3 && _args10[3] !== undefined ? _args10[3] : {}, access = _ref9.access, _ref9$length = _ref9.length, length = _ref9$length === void 0 ? -1 : _ref9$length, timeout = _ref9.timeout, onProgressCallback = _ref9.onProgressCallback, sortFn = _ref9.sortFn;
+                _ref11 = _args10.length > 3 && _args10[3] !== undefined ? _args10[3] : {}, access = _ref11.access, _ref11$length = _ref11.length, length = _ref11$length === void 0 ? -1 : _ref11$length, sortFn = _ref11.sortFn, onProgressCallback = _ref11.onProgressCallback;
                 _context10.next = 3;
                 return LogIO.fromJSON(ipfs, json, {
                   length: length,
-                  timeout: timeout,
                   onProgressCallback: onProgressCallback
                 });
 
               case 3:
-                data = _context10.sent;
+                _ref12 = _context10.sent;
+                logId = _ref12.logId;
+                entries = _ref12.entries;
                 return _context10.abrupt("return", new Log(ipfs, identity, {
-                  logId: data.id,
+                  logId: logId,
                   access: access,
-                  entries: data.values,
+                  entries: entries,
                   sortFn: sortFn
                 }));
 
-              case 5:
+              case 7:
               case "end":
                 return _context10.stop();
             }
@@ -1141,7 +1095,7 @@ function (_GSet) {
         }, _callee10);
       }));
 
-      function fromJSON(_x13, _x14, _x15) {
+      function fromJSON(_x12, _x13, _x14) {
         return _fromJSON.apply(this, arguments);
       }
 
@@ -1167,40 +1121,45 @@ function (_GSet) {
       var _fromEntry = (0, _asyncToGenerator2.default)(
       /*#__PURE__*/
       _regenerator.default.mark(function _callee11(ipfs, identity, sourceEntries) {
-        var _ref10,
+        var _ref13,
             access,
-            _ref10$length,
+            _ref13$length,
             length,
+            _ref13$exclude,
             exclude,
-            onProgressCallback,
-            timeout,
+            concurrency,
             sortFn,
-            data,
+            onProgressCallback,
+            _ref14,
+            logId,
+            entries,
             _args11 = arguments;
 
         return _regenerator.default.wrap(function _callee11$(_context11) {
           while (1) {
             switch (_context11.prev = _context11.next) {
               case 0:
-                _ref10 = _args11.length > 3 && _args11[3] !== undefined ? _args11[3] : {}, access = _ref10.access, _ref10$length = _ref10.length, length = _ref10$length === void 0 ? -1 : _ref10$length, exclude = _ref10.exclude, onProgressCallback = _ref10.onProgressCallback, timeout = _ref10.timeout, sortFn = _ref10.sortFn;
+                _ref13 = _args11.length > 3 && _args11[3] !== undefined ? _args11[3] : {}, access = _ref13.access, _ref13$length = _ref13.length, length = _ref13$length === void 0 ? -1 : _ref13$length, _ref13$exclude = _ref13.exclude, exclude = _ref13$exclude === void 0 ? [] : _ref13$exclude, concurrency = _ref13.concurrency, sortFn = _ref13.sortFn, onProgressCallback = _ref13.onProgressCallback;
                 _context11.next = 3;
                 return LogIO.fromEntry(ipfs, sourceEntries, {
                   length: length,
                   exclude: exclude,
-                  onProgressCallback: onProgressCallback,
-                  timeout: timeout
+                  concurrency: concurrency,
+                  onProgressCallback: onProgressCallback
                 });
 
               case 3:
-                data = _context11.sent;
+                _ref14 = _context11.sent;
+                logId = _ref14.logId;
+                entries = _ref14.entries;
                 return _context11.abrupt("return", new Log(ipfs, identity, {
-                  logId: data.id,
+                  logId: logId,
                   access: access,
-                  entries: data.values,
+                  entries: entries,
                   sortFn: sortFn
                 }));
 
-              case 5:
+              case 7:
               case "end":
                 return _context11.stop();
             }
@@ -1208,7 +1167,7 @@ function (_GSet) {
         }, _callee11);
       }));
 
-      function fromEntry(_x16, _x17, _x18) {
+      function fromEntry(_x15, _x16, _x17) {
         return _fromEntry.apply(this, arguments);
       }
 
diff --git a/package.json b/package.json
index 5d11bc8b..9a9f79f8 100644
--- a/package.json
+++ b/package.json
@@ -72,7 +72,7 @@
   "scripts": {
     "test": "TEST=all mocha",
     "test:coverage": "istanbul cover -x src/g-set.js _mocha",
-    "test:browser": "npm run build:tests && mocha-headless-chrome -t 240000 -f ./test/browser/index.html -a no-sandbox",
+    "test:browser": "npm run build:tests && mocha-headless-chrome -t 360000 -f ./test/browser/index.html -a no-sandbox",
     "build": "npm run build:es5 && npm run build:examples && npm run build:dist",
     "build:tests": "webpack --config webpack.tests.config.js --mode production",
     "build:examples": "webpack --config webpack.example.config.js --sort-modules-by size --mode production",
diff --git a/src/entry-io.js b/src/entry-io.js
index 579b28bd..cff89c68 100644
--- a/src/entry-io.js
+++ b/src/entry-io.js
@@ -4,18 +4,21 @@ const pMap = require('p-map')
 const pDoWhilst = require('p-do-whilst')
 const Entry = require('./entry')
 
+const hasItems = arr => arr && arr.length > 0
+
 class EntryIO {
   // Fetch log graphs in parallel
-  static fetchParallel (ipfs, hashes, { length, exclude = [], concurrency, timeout, onProgressCallback }) {
-    const fetchOne = (hash) => EntryIO.fetchAll(ipfs, hash, length, exclude, timeout, onProgressCallback)
+  static async fetchParallel (ipfs, hashes, { length, exclude = [], concurrency, onProgressCallback }) {
+    concurrency = Math.max(concurrency || hashes.length, 1)
+    const fetchOne = async (hash) => EntryIO.fetchAll(ipfs, hash, { length, exclude, onProgressCallback, concurrency })
     const concatArrays = (arr1, arr2) => arr1.concat(arr2)
     const flatten = (arr) => arr.reduce(concatArrays, [])
-    return pMap(hashes, fetchOne, { concurrency: Math.max(concurrency || hashes.length, 1) })
-      .then(flatten) // Flatten the results
+    const res = await pMap(hashes, fetchOne, { concurrency })
+    return flatten(res)
   }
 
   /**
-   * Fetch log entries sequentially
+   * Fetch log entries
    *
    * @param {IPFS} [ipfs] An IPFS instance
    * @param {string} [hash] Multihash of the entry to fetch
@@ -26,13 +29,20 @@ class EntryIO {
    * @param {function(hash, entry, parent, depth)} onProgressCallback
    * @returns {Promise>}
    */
-  static async fetchAll (ipfs, hashes, { length = -1, exclude = [], timeout = null, onProgressCallback, onStartProgressCallback, concurrency = 32, delay = 0 } = {}) {
+  static async fetchAll (ipfs, hashes, { length = -1, exclude = [], onProgressCallback, onStartProgressCallback, concurrency = 32, delay = 0 } = {}) {
     let result = []
     let cache = {}
     let loadingCache = {}
     let loadingQueue = Array.isArray(hashes)
       ? { 0: hashes.slice() }
       : { 0: [hashes] }
+    let running = 0 // keep track of how many entries are being fetched at any time
+    let maxClock = 0 // keep track of the latest clock time during load
+    let minClock = 0 // keep track of the minimum clock time during load
+
+    // Does the loading queue have more to process?
+    const loadingQueueHasMore = () => Object.values(loadingQueue).find(hasItems) !== undefined
+
     // Add a multihash to the loading queue
     const addToLoadingQueue = (e, idx) => {
       if (!loadingCache[e]) {
@@ -40,107 +50,111 @@ class EntryIO {
         if (!loadingQueue[idx].includes(e)) {
           loadingQueue[idx].push(e)
         }
-        loadingCache[e] = idx
+        loadingCache[e] = true
       }
     }
 
-    // Add entries that we don't need to fetch to the "cache"
-    const addToExcludeCache = e => { cache[e.hash] = e }
-    exclude.forEach(addToExcludeCache)
-
-    const loadingQueueHasMore = () => Object.values(loadingQueue)
-      .find(e => e && e.length > 0) !== undefined
-
-    const shouldFetchMore = () => {
-      return loadingQueueHasMore() &&
-          (result.length < length || length < 0)
-    }
-
+    // Get the next items to process from the loading queue
     const getNextFromQueue = (length = 1) => {
-      const all = Object.values(loadingQueue).reduce((res, acc) => {
-        while (acc.length > 0 && res.length < length) {
-          const e = acc.shift()
-          res.push(e)
+      const getNext = (res, key, idx) => {
+        const nextItems = loadingQueue[key]
+        while (nextItems.length > 0 && res.length < length) {
+          const hash = nextItems.shift()
+          res.push(hash)
+        }
+        if (nextItems.length === 0) {
+          delete loadingQueue[key]
         }
         return res
-      }, [])
-      return all
+      }
+      return Object.keys(loadingQueue).reduce(getNext, [])
     }
 
-    const fetchEntry = (hash) => {
+    // Add entries that we don't need to fetch to the "cache"
+    const addToExcludeCache = e => { cache[e.hash] = true }
+
+    // Fetch one entry and add it to the results
+    const fetchEntry = async (hash) => {
       if (!hash || cache[hash]) {
-        return Promise.resolve()
+        return
       }
 
-      return new Promise((resolve, reject) => {
-        // Resolve the promise after a timeout (if given) in order to
-        // not get stuck loading a block that is unreachable
-        // const timer = timeout
-        // ? setTimeout(() => {
-        //     console.warn(`Warning: Couldn't fetch entry '${hash}', request timed out (${timeout}ms)`)
-        //     resolve()
-        //   } , timeout)
-        // : null
-
-        const sleep = (ms = 0) => new Promise(resolve => setTimeout(resolve, ms))
+      const addToResults = (entry) => {
+        if (Entry.isEntry(entry)) {
+          const ts = entry.clock.time
+
+          // Update min/max clocks
+          maxClock = Math.max(maxClock, ts)
+          minClock = result.length > 0
+            ? Math.min(result[result.length - 1].clock.time, minClock)
+            : maxClock
+
+          const isLater = (result.length >= length && ts >= minClock)
+          const calculateIndex = (idx) => maxClock - ts + ((idx + 1) * idx)
+
+          // Add the entry to the results if
+          // 1) we're fetching all entries
+          // 2) results is not filled yet
+          // the clock of the entry is later than current known minimum clock time
+          if (length < 0 || result.length < length || isLater) {
+            result.push(entry)
+            cache[hash] = true
+          }
 
-        const addToResults = (entry) => {
-          // clearTimeout(timer)
-          if (Entry.isEntry(entry)) {
-            try {
-              entry.next.forEach(addToLoadingQueue)
-              entry.refs.forEach(addToLoadingQueue)
-
-              result.push(entry)
-              cache[hash] = entry
-              if (onProgressCallback) {
-                onProgressCallback(hash, entry, result.length, result, loadingQueue)
-              }
-            } catch (e) {
-              console.error(e)
+          if (length < 0) {
+            // If we're fetching all entries (length === -1), adds nexts and refs to the queue
+            entry.next.forEach(addToLoadingQueue)
+            entry.refs.forEach(addToLoadingQueue)
+          } else {
+            // If we're fetching entries up to certain length,
+            // fetch the next if result is filled up, to make sure we "check"
+            // the next entry if its clock is later than what we have in the result
+            if (result.length <= length || ts >= minClock) {
+              entry.next.forEach(e => addToLoadingQueue(e, calculateIndex(0)))
+            }
+            if ((result.length + entry.refs.length) <= length) {
+              entry.refs.forEach((e, i) => addToLoadingQueue(e, calculateIndex(i)))
             }
           }
         }
+      }
 
-        if (onStartProgressCallback) {
-          onStartProgressCallback(hash, null, result.length, result, loadingQueue)
-        }
+      if (onStartProgressCallback) {
+        onStartProgressCallback(hash, null, result.length, result, loadingQueue)
+      }
+
+      // Load the entry
+      const entry = await Entry.fromMultihash(ipfs, hash)
 
-        // Load the entry
-        Entry.fromMultihash(ipfs, hash)
-          .then(addToResults)
-          .then(async (entry) => {
-            // Simulate network latency
-            if (delay > 0) { await sleep(delay) }
-
-            return entry
-          })
-          .then(resolve)
-          .catch(err => {
-            reject(err)
-          })
-      })
+      // Add it to the results
+      addToResults(entry)
+
+      if (onProgressCallback) {
+        onProgressCallback(hash, entry, result.length, result, loadingQueue)
+      }
+
+      // Simulate network latency (for debugging purposes)
+      if (delay > 0) {
+        const sleep = (ms = 0) => new Promise(resolve => setTimeout(resolve, ms))
+        await sleep(delay)
+      }
     }
 
-    let running = 0
+    // One loop of processing the loading queue
     const _processQueue = async () => {
       if (running < concurrency) {
-        let nexts = getNextFromQueue(concurrency)
-        if (result.length + nexts.length > length && !(length < 0)) {
-          nexts = nexts.slice(0, length - result.length) // trim nexts to match length
-        }
+        const nexts = getNextFromQueue(concurrency)
         running += nexts.length
         await pMap(nexts, fetchEntry)
         running -= nexts.length
       }
     }
 
-    await pDoWhilst(async () => _processQueue(), shouldFetchMore)
+    // Add entries to exclude from processing to the cache before we start
+    exclude.forEach(addToExcludeCache)
 
-    // Free memory to avoid minor GC
-    cache = {}
-    loadingCache = {}
-    loadingQueue = []
+    // Fetch entries
+    await pDoWhilst(_processQueue, loadingQueueHasMore)
 
     return result
   }
diff --git a/src/log-io.js b/src/log-io.js
index 47af5d45..e1bbcb0c 100644
--- a/src/log-io.js
+++ b/src/log-io.js
@@ -2,7 +2,8 @@
 
 const Entry = require('./entry')
 const EntryIO = require('./entry-io')
-const Clock = require('./lamport-clock')
+const Sorting = require('./log-sorting')
+const { LastWriteWins, NoZeroes } = Sorting
 const LogError = require('./log-errors')
 const { isDefined, findUniques, difference, io } = require('./utils')
 
@@ -36,30 +37,26 @@ class LogIO {
    * @param {Array} options.exclude Entries to not fetch (cached)
    * @param {function(hash, entry, parent, depth)} options.onProgressCallback
    */
-  static async fromMultihash (ipfs, hash, { length = -1, exclude, onProgressCallback, timeout } = {}) {
+  static async fromMultihash (ipfs, hash,
+    { length = -1, exclude = [], concurrency, sortFn, onProgressCallback }) {
     if (!isDefined(ipfs)) throw LogError.IPFSNotDefinedError()
     if (!isDefined(hash)) throw new Error(`Invalid hash: ${hash}`)
 
     const logData = await io.read(ipfs, hash, { links: IPLD_LINKS })
+
     if (!logData.heads || !logData.id) throw LogError.NotALogError()
-    const entries = await EntryIO.fetchAll(ipfs, logData.heads,
-      { length, exclude, onProgressCallback, timeout })
-
-    // Find latest clock
-    const clock = entries.reduce((clock, entry) => {
-      if (entry.clock.time > clock.time) {
-        return new Clock(entry.clock.id, entry.clock.time)
-      }
-      return clock
-    }, new Clock(logData.id))
-    const finalEntries = entries.slice().sort(Entry.compare)
-    const heads = finalEntries.filter(e => logData.heads.includes(e.hash))
-    return {
-      id: logData.id,
-      values: finalEntries,
-      heads: heads,
-      clock: clock
-    }
+
+    // Use user provided sorting function or the default one
+    sortFn = sortFn || NoZeroes(LastWriteWins)
+    const isHead = e => logData.heads.includes(e.hash)
+
+    const all = await EntryIO.fetchAll(ipfs, logData.heads,
+      { length, exclude, concurrency, onProgressCallback })
+
+    const logId = logData.id
+    const entries = length > -1 ? last(all.sort(sortFn), length) : all
+    const heads = entries.filter(isHead)
+    return { logId, entries, heads }
   }
 
   /**
@@ -70,25 +67,21 @@ class LogIO {
    * @param {number} options.length How many items to include in the log
    * @param {Array} options.exclude Entries to not fetch (cached)
    * @param {function(hash, entry, parent, depth)} options.onProgressCallback
-   * @param {number} options.timeout Timeout for fetching a log entry from IPFS
    */
-  static async fromEntryHash (ipfs, hash, { length = -1, exclude, onProgressCallback, timeout }) {
+  static async fromEntryHash (ipfs, hash,
+    { length = -1, exclude = [], concurrency, onProgressCallback }) {
     if (!isDefined(ipfs)) throw LogError.IpfsNotDefinedError()
     if (!isDefined(hash)) throw new Error("'hash' must be defined")
     // Convert input hash(s) to an array
     const hashes = Array.isArray(hash) ? hash : [hash]
     // Fetch given length, return size at least the given input entries
     length = length > -1 ? Math.max(length, 1) : length
-
-    const entries = await EntryIO.fetchParallel(ipfs, hashes,
-      { length, exclude, onProgressCallback, timeout, concurrency: 128 })
+    const all = await EntryIO.fetchParallel(ipfs, hashes,
+      { length, exclude, concurrency, onProgressCallback })
     // Cap the result at the right size by taking the last n entries,
     // or if given length is -1, then take all
-    const sliced = length > -1 ? last(entries, length) : entries
-    // console.log(">>>", sliced.length)
-    return {
-      values: sliced
-    }
+    const entries = length > -1 ? last(all, length) : all
+    return { entries }
   }
 
   /**
@@ -98,20 +91,16 @@ class LogIO {
    * @param {json} json A json object containing valid log data
    * @param {Object} options
    * @param {number} options.length How many entries to include
-   * @param {number} options.timeout Maximum time to wait for each fetch operation, in ms
    * @param {function(hash, entry, parent, depth)} options.onProgressCallback
    **/
-  static async fromJSON (ipfs, json, { length = -1, timeout, onProgressCallback }) {
+  static async fromJSON (ipfs, json, { length = -1, concurrency, onProgressCallback }) {
     if (!isDefined(ipfs)) throw LogError.IPFSNotDefinedError()
-    const headHashes = json.heads.map(e => e.hash)
-    const entries = await EntryIO.fetchParallel(ipfs, headHashes,
-      { length, exclude: [], concurrency: 16, timeout, onProgressCallback })
-    const finalEntries = entries.slice().sort(Entry.compare)
-    return {
-      id: json.id,
-      values: finalEntries,
-      heads: json.heads
-    }
+    const { id, heads } = json
+    const headHashes = heads.map(e => e.hash)
+    const all = await EntryIO.fetchParallel(ipfs, headHashes,
+      { length, concurrency, onProgressCallback })
+    const entries = all.sort(Entry.compare)
+    return { logId: id, entries, heads }
   }
 
   /**
@@ -123,7 +112,8 @@ class LogIO {
    * @param {Array} options.exclude Entries to not fetch (cached)
    * @param {function(hash, entry, parent, depth)} options.onProgressCallback
    */
-  static async fromEntry (ipfs, sourceEntries, { length = -1, exclude, onProgressCallback, timeout }) {
+  static async fromEntry (ipfs, sourceEntries,
+    { length = -1, exclude = [], concurrency, onProgressCallback }) {
     if (!isDefined(ipfs)) throw LogError.IPFSNotDefinedError()
     if (!isDefined(sourceEntries)) throw new Error("'sourceEntries' must be defined")
 
@@ -143,11 +133,11 @@ class LogIO {
     const hashes = sourceEntries.map(e => e.hash)
 
     // Fetch the entries
-    const entries = await EntryIO.fetchParallel(ipfs, hashes,
-      { length, exclude, onProgressCallback, timeout, concurrency: 64 })
+    const all = await EntryIO.fetchParallel(ipfs, hashes,
+      { length, exclude, concurrency, onProgressCallback })
 
     // Combine the fetches with the source entries and take only uniques
-    const combined = sourceEntries.concat(entries)
+    const combined = sourceEntries.concat(all).concat(exclude)
     const uniques = findUniques(combined, 'hash').sort(Entry.compare)
 
     // Cap the result at the right size by taking the last n entries
@@ -164,11 +154,9 @@ class LogIO {
 
     // Add the input entries at the beginning of the array and remove
     // as many elements from the array before inserting the original entries
-    const result = replaceInFront(sliced, missingSourceEntries)
-    return {
-      id: result[result.length - 1].id,
-      values: result
-    }
+    const entries = replaceInFront(sliced, missingSourceEntries)
+    const logId = entries[entries.length - 1].id
+    return { logId, entries }
   }
 }
 
diff --git a/src/log.js b/src/log.js
index fe36aad0..9a2ff06d 100644
--- a/src/log.js
+++ b/src/log.js
@@ -194,69 +194,6 @@ class Log extends GSet {
     return this._entryIndex.get(entry.hash || entry) !== undefined
   }
 
-  getNextAndTraverse (rootEntries, amount) {
-    let stack = rootEntries
-    // .map(getFirstNextPointer)
-    // .map(e => this.get(e))
-    // .filter(isDefined)
-
-    // Cache for checking if we've processed an entry already
-    let traversed = {}
-    // End result
-    let result = {}
-    // We keep a counter to check if we have traversed requested amount of entries
-    let count = 0
-
-    // Named function for getting an entry from the log
-    const getEntry = e => this.get(e)
-
-    // Add an entry to the stack and traversed nodes index
-    const addToStack = entry => {
-      // If we've already processed the entry, don't add it to the stack
-      if (!entry || traversed[entry.hash]) {
-        return
-      }
-
-      // Add the entry in front of the stack and sort
-      stack = [entry, ...stack]
-        .sort(this._sortFn)
-        .reverse()
-        // Add to the cache of processed entries
-      traversed[entry.hash] = true
-    }
-
-    const addEntry = rootEntry => {
-      result[rootEntry.hash] = rootEntry
-      traversed[rootEntry.hash] = true
-      count++
-    }
-
-    // rootEntries.forEach(addEntry)
-
-    // Start traversal
-    // Process stack until it's empty (traversed the full log)
-    // or when we have the requested amount of entries
-    // If requested entry amount is -1, traverse all
-    while (stack.length > 0 && (count < amount || amount < 0)) { // eslint-disable-line no-unmodified-loop-condition
-      // Get the next element from the stack
-      const entry = stack.shift()
-
-      // Add to the result
-      // result[entry.hash] = entry
-      addEntry(entry)
-      // if ((amount !== -1) && (++count >= amount)) break
-
-      // Add entry's next references to the stack
-      const entries = entry.next.map(getEntry)
-      const defined = entries.filter(isDefined)
-      defined.forEach(addToStack)
-    }
-
-    stack = []
-    traversed = {}
-    return result
-  }
-
   traverse (rootEntries, amount = -1, endHash) {
     // Sort the given given root entries and use as the starting stack
     let stack = rootEntries.sort(this._sortFn).reverse()
@@ -324,37 +261,32 @@ class Log extends GSet {
     const newTime = Math.max(this.clock.time, this.heads.reduce(maxClockTimeReducer, 0)) + 1
     this._clock = new Clock(this.clock.id, newTime)
 
-    const heads = this.traverse(this.heads, this.heads.length)
+    const all = Object.values(this.traverse(this.heads, pointerCount))
 
-    const sortedHeadIndex = this.heads.reverse().reduce(uniqueEntriesReducer, {})
-    const nexts = Object.keys(Object.assign({}, sortedHeadIndex, heads))
-    const all = Object.values(this.getNextAndTraverse(this.heads, pointerCount))
+    // If pointer count is 4, returns 2
+    // If pointer count is 8, returns 3 references
+    // If pointer count is 512, returns 9 references
+    // If pointer count is 2048, returns 11 references
     const getEveryPow2 = (maxDistance) => {
       let entries = new Set()
       for (let i = 1; i <= maxDistance; i *= 2) {
         const index = Math.min(i - 1, all.length - 1)
-        const ref = all[index]
-        entries.add(ref)
+        entries.add(all[index])
       }
-
       return entries
     }
-
-    // If pointer count is 4, returns 2
-    // If pointer count is 8, returns 3 references
-    // If pointer count is 512, returns 9 references
-    // If pointer count is 2048, returns 11 references
     const references = getEveryPow2(Math.min(pointerCount, all.length))
-    let refSet = new Set(references)
 
     // Always include the last known reference
     if (all.length < pointerCount && all[all.length - 1]) {
-      refSet.add(all[all.length - 1])
+      references.add(all[all.length - 1])
     }
 
-    // Delete the heads from the refs
+    // Create the next pointers from heads
+    const nexts = Object.keys(this.heads.reverse().reduce(uniqueEntriesReducer, {}))
     const isNext = e => !nexts.includes(e)
-    const refs = Array.from(refSet).map(getHash).filter(isNext)
+    // Delete the heads from the refs
+    const refs = Array.from(references).map(getHash).filter(isNext)
 
     // @TODO: Split Entry.create into creating object, checking permission, signing and then posting to IPFS
     // Create the entry and add it to the internal cache
@@ -594,7 +526,7 @@ class Log extends GSet {
 
   /**
    * Get the log's multihash.
-   * @returns {Promise} Multihash of the Log as Base58 encoded stringx
+   * @returns {Promise} Multihash of the Log as Base58 encoded string.
    */
   toMultihash ({ format } = {}) {
     return LogIO.toMultihash(this._storage, this, { format })
@@ -614,17 +546,11 @@ class Log extends GSet {
    * @returns {Promise}
    */
   static async fromMultihash (ipfs, identity, hash,
-    { access, length = -1, exclude, onProgressCallback, sortFn, timeout, format } = {}) {
+    { access, length = -1, exclude = [], concurrency, sortFn, onProgressCallback } = {}) {
     // TODO: need to verify the entries with 'key'
-    const data = await LogIO.fromMultihash(ipfs, hash, { length, exclude, onProgressCallback, timeout, format })
-    return new Log(ipfs, identity, {
-      logId: data.id,
-      access: access,
-      entries: data.values,
-      heads: data.heads,
-      clock: new Clock(data.clock.id, data.clock.time),
-      sortFn: sortFn
-    })
+    const { logId, entries, heads } = await LogIO.fromMultihash(ipfs, hash,
+      { length, exclude, onProgressCallback, concurrency, sortFn })
+    return new Log(ipfs, identity, { logId, access, entries, heads, sortFn })
   }
 
   /**
@@ -639,14 +565,14 @@ class Log extends GSet {
    * @param {Array} options.exclude Entries to not fetch (cached)
    * @param {function(hash, entry, parent, depth)} options.onProgressCallback
    * @param {Function} options.sortFn The sort function - by default LastWriteWins
-   * @param {number} options.timeout Timeout for fetching a log entry from IPFS
    * @return {Promise} New Log
    */
   static async fromEntryHash (ipfs, identity, hash,
-    { logId, access, length = -1, exclude, onProgressCallback, sortFn, timeout }) {
+    { logId, access, length = -1, exclude = [], concurrency, sortFn, onProgressCallback } = {}) {
     // TODO: need to verify the entries with 'key'
-    const data = await LogIO.fromEntryHash(ipfs, hash, { length, exclude, onProgressCallback, timeout })
-    return new Log(ipfs, identity, { logId, access, entries: data.values, sortFn })
+    const { entries } = await LogIO.fromEntryHash(ipfs, hash,
+      { length, exclude, concurrency, onProgressCallback })
+    return new Log(ipfs, identity, { logId, access, entries, sortFn })
   }
 
   /**
@@ -657,16 +583,15 @@ class Log extends GSet {
    * @param {Object} options
    * @param {AccessController} options.access The access controller instance
    * @param {number} options.length How many entries to include in the log
-   * @param {number} options.timeout Maximum time to wait for each fetch operation, in ms
    * @param {function(hash, entry, parent, depth)} [options.onProgressCallback]
    * @param {Function} options.sortFn The sort function - by default LastWriteWins
    * @return {Promise} New Log
    */
   static async fromJSON (ipfs, identity, json,
-    { access, length = -1, timeout, onProgressCallback, sortFn } = {}) {
+    { access, length = -1, sortFn, onProgressCallback } = {}) {
     // TODO: need to verify the entries with 'key'
-    const data = await LogIO.fromJSON(ipfs, json, { length, timeout, onProgressCallback })
-    return new Log(ipfs, identity, { logId: data.id, access, entries: data.values, sortFn })
+    const { logId, entries } = await LogIO.fromJSON(ipfs, json, { length, onProgressCallback })
+    return new Log(ipfs, identity, { logId, access, entries, sortFn })
   }
 
   /**
@@ -683,11 +608,11 @@ class Log extends GSet {
    * @return {Promise} New Log
    */
   static async fromEntry (ipfs, identity, sourceEntries,
-    { access, length = -1, exclude, onProgressCallback, timeout, sortFn } = {}) {
+    { access, length = -1, exclude = [], concurrency, sortFn, onProgressCallback } = {}) {
     // TODO: need to verify the entries with 'key'
-    const data = await LogIO.fromEntry(ipfs, sourceEntries,
-      { length, exclude, onProgressCallback, timeout })
-    return new Log(ipfs, identity, { logId: data.id, access, entries: data.values, sortFn })
+    const { logId, entries } = await LogIO.fromEntry(ipfs, sourceEntries,
+      { length, exclude, concurrency, onProgressCallback })
+    return new Log(ipfs, identity, { logId, access, entries, sortFn })
   }
 
   /**
diff --git a/test/log-load.spec.js b/test/log-load.spec.js
index 9c9bb5fc..2e570f2d 100644
--- a/test/log-load.spec.js
+++ b/test/log-load.spec.js
@@ -673,7 +673,7 @@ Object.keys(testAPIs).forEach((IPFS) => {
         let res = await Log.fromMultihash(ipfs, testIdentity2, hash, { length: 5 })
 
         const first5 = [
-          'entryA5', 'entryB5', 'entryC0', 'entryA9', 'entryA10'
+          'entryC0', 'entryA7', 'entryA8', 'entryA9', 'entryA10'
         ]
 
         assert.deepStrictEqual(res.values.map(e => e.payload), first5)
@@ -682,10 +682,10 @@ Object.keys(testAPIs).forEach((IPFS) => {
         res = await Log.fromMultihash(ipfs, testIdentity2, hash, { length: 11 })
 
         const first11 = [
-          'entryA3', 'entryB3', 'entryA4', 'entryB4',
+          'entryB3', 'entryA4', 'entryB4',
           'entryA5', 'entryB5',
-          'entryC0',
-          'entryA7', 'entryA8', 'entryA9', 'entryA10'
+          'entryA6',
+          'entryC0', 'entryA7', 'entryA8', 'entryA9', 'entryA10'
         ]
 
         assert.deepStrictEqual(res.values.map(e => e.payload), first11)
@@ -694,7 +694,7 @@ Object.keys(testAPIs).forEach((IPFS) => {
         res = await Log.fromMultihash(ipfs, testIdentity2, hash, { length: 16 - 1 })
 
         const all = [
-          'entryA1', /* excl */ 'entryA2', 'entryB2', 'entryA3', 'entryB3',
+          /* excl */ 'entryB1', 'entryA2', 'entryB2', 'entryA3', 'entryB3',
           'entryA4', 'entryB4', 'entryA5', 'entryB5',
           'entryA6',
           'entryC0', 'entryA7', 'entryA8', 'entryA9', 'entryA10'
@@ -746,8 +746,8 @@ Object.keys(testAPIs).forEach((IPFS) => {
         res = await Log.fromMultihash(ipfs, testIdentity2, hash, { length: 11 })
 
         const first11 = [
-          'entryA1', 'entryA2', 'entryA3', 'entryA4',
-          'entryA5', 'entryA6',
+          'entryB3', 'entryA4', 'entryB4', 'entryA5',
+          'entryB5', 'entryA6',
           'entryC0',
           'entryA7', 'entryA8', 'entryA9', 'entryA10'
         ]
@@ -758,7 +758,7 @@ Object.keys(testAPIs).forEach((IPFS) => {
         res = await Log.fromMultihash(ipfs, testIdentity2, hash, { length: 16 - 1 })
 
         const all = [
-          'entryA1', /* excl */ 'entryA2', 'entryB2', 'entryA3', 'entryB3',
+          /* excl */ 'entryB1', 'entryA2', 'entryB2', 'entryA3', 'entryB3',
           'entryA4', 'entryB4', 'entryA5', 'entryB5',
           'entryA6',
           'entryC0', 'entryA7', 'entryA8', 'entryA9', 'entryA10'