diff --git a/modules/ipc/methods/base.js b/modules/ipc/methods/base.js
index 8e61516d0..57f1d3072 100644
--- a/modules/ipc/methods/base.js
+++ b/modules/ipc/methods/base.js
@@ -31,7 +31,7 @@ module.exports = class BaseProcessor {
 
         const ret = await conn.socket.send(payload, {
             fullResult: true,
-        })
+        });
 
         return ret.result;
     }
diff --git a/modules/ipc/methods/eth_getTransactionReceipt.js b/modules/ipc/methods/eth_getTransactionReceipt.js
new file mode 100644
index 000000000..46b4f8549
--- /dev/null
+++ b/modules/ipc/methods/eth_getTransactionReceipt.js
@@ -0,0 +1,60 @@
+const _ = global._;
+const BaseProcessor = require('./base');
+const eth = require('ethereumjs-util');
+
+/**
+ * Process method: eth_getTransactionReceipt
+ */
+
+module.exports = class extends BaseProcessor {
+
+    sanitizeRequestPayload(conn, payload, isPartOfABatch) {
+        return super.sanitizeRequestPayload(conn, payload, isPartOfABatch);
+    }
+
+    async exec(conn, payload) {
+        const txHash = payload.params[0];
+
+        // Sends regular eth_getTransactionReceipt request
+        const ret = await conn.socket.send(payload, {
+            fullResult: true
+        });
+
+        // If that contains a contractAddress already, fine.
+        if (ret.result.result.contractAddress != null) {
+            return ret.result;
+        }
+
+        // Due to a geth's light client v1 bug, it does not return
+        // contractAddress value on the receipts. Let's fix that.
+        // 1. GET TRANSACTION from AND nonce VALUES
+        const transactionInfo = await conn.socket.send({
+            jsonrpc: '2.0',
+            id: _.uuid(),
+            method: 'eth_getTransactionByHash',
+            params: [txHash]
+        }, { fullResult: true });
+
+
+        const fromAddress = transactionInfo.result.result.from;
+        const nonce = parseInt(transactionInfo.result.result.nonce, 16);
+        const possibleContractAddress = `0x${eth.generateAddress(fromAddress, nonce).toString('hex')}`;
+
+
+        // 2. GET CODE FROM ADDRESS
+        const contractCode = await conn.socket.send({
+            jsonrpc: '2.0',
+            id: _.uuid(),
+            method: 'eth_getCode',
+            params: [possibleContractAddress, 'latest']
+        }, { fullResult: true });
+        const contractCodeResult = contractCode.result.result;
+
+        // 3. IF IT EXISTS, ASSIGN TO RETURN VALUE
+        if (contractCodeResult && contractCodeResult.length > 2) {
+            ret.result.result.contractAddress = possibleContractAddress;
+        }
+
+        return ret.result;
+    }
+};
diff --git a/package.json b/package.json
index 0fc5eed76..08d0bd4c0 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
     "ethereum-client-binaries": "^1.6.1",
     "ethereum-keyfile-recognizer": "^1.0.2",
     "ethereumjs-abi": "^0.6.3",
+    "ethereumjs-util": "^5.1.2",
     "fs-promise": "^2.0.0",
     "got": "^6.7.1",
     "i18next": "^7.1.3",
diff --git a/yarn.lock b/yarn.lock
index 67cf1416b..7f08ca10c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -261,7 +261,7 @@ babel-code-frame@^6.16.0, babel-code-frame@^6.26.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
-babel-core@^6.26.0:
+babel-core@^6.0.14, babel-core@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
   dependencies:
@@ -307,6 +307,15 @@ babel-helper-call-delegate@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
+babel-helper-define-map@^6.24.1:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-helper-define-map/-/babel-helper-define-map-6.26.0.tgz#a5f56dab41a25f97ecb498c7ebaca9819f95be5f"
+  dependencies:
+    babel-helper-function-name "^6.24.1"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    lodash "^4.17.4"
+
 babel-helper-function-name@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
@@ -331,6 +340,13 @@ babel-helper-hoist-variables@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
+babel-helper-optimise-call-expression@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-optimise-call-expression/-/babel-helper-optimise-call-expression-6.24.1.tgz#f7a13427ba9f73f8f4fa993c54a97882d1244257"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
 babel-helper-regex@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-helper-regex/-/babel-helper-regex-6.26.0.tgz#325c59f902f82f24b74faceed0363954f6495e72"
@@ -349,6 +365,17 @@ babel-helper-remap-async-to-generator@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
+babel-helper-replace-supers@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz#bf6dbfe43938d17369a213ca8a8bf74b6a90ab1a"
+  dependencies:
+    babel-helper-optimise-call-expression "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
 babel-helpers@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helpers/-/babel-helpers-6.24.1.tgz#3471de9caec388e5c850e597e58a26ddf37602b2"
@@ -362,6 +389,12 @@ babel-messages@^6.23.0:
   dependencies:
     babel-runtime "^6.22.0"
 
+babel-plugin-check-es2015-constants@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-check-es2015-constants/-/babel-plugin-check-es2015-constants-6.22.0.tgz#35157b101426fd2ffd3da3f75c7d1e91835bbf8a"
+  dependencies:
+    babel-runtime "^6.22.0"
+
 babel-plugin-syntax-async-functions@^6.1.4, babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
@@ -378,13 +411,91 @@ babel-plugin-transform-async-to-generator@^6.1.4:
     babel-plugin-syntax-async-functions "^6.8.0"
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-destructuring@^6.0.2:
+babel-plugin-transform-es2015-arrow-functions@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz#452692cb711d5f79dc7f85e440ce41b9f244d221"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-block-scoped-functions@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoped-functions/-/babel-plugin-transform-es2015-block-scoped-functions-6.22.0.tgz#bbc51b49f964d70cb8d8e0b94e820246ce3a6141"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-block-scoping@^6.24.1:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz#d70f5299c1308d05c12f463813b0a09e73b1895f"
+  dependencies:
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    lodash "^4.17.4"
+
+babel-plugin-transform-es2015-classes@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-classes/-/babel-plugin-transform-es2015-classes-6.24.1.tgz#5a4c58a50c9c9461e564b4b2a3bfabc97a2584db"
+  dependencies:
+    babel-helper-define-map "^6.24.1"
+    babel-helper-function-name "^6.24.1"
+    babel-helper-optimise-call-expression "^6.24.1"
+    babel-helper-replace-supers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
+babel-plugin-transform-es2015-computed-properties@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-computed-properties/-/babel-plugin-transform-es2015-computed-properties-6.24.1.tgz#6fe2a8d16895d5634f4cd999b6d3480a308159b3"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-plugin-transform-es2015-destructuring@^6.0.2, babel-plugin-transform-es2015-destructuring@^6.22.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz#997bb1f1ab967f682d2b0876fe358d60e765c56d"
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-modules-commonjs@^6.0.12:
+babel-plugin-transform-es2015-duplicate-keys@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-duplicate-keys/-/babel-plugin-transform-es2015-duplicate-keys-6.24.1.tgz#73eb3d310ca969e3ef9ec91c53741a6f1576423e"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
+babel-plugin-transform-es2015-for-of@^6.22.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-for-of/-/babel-plugin-transform-es2015-for-of-6.23.0.tgz#f47c95b2b613df1d3ecc2fdb7573623c75248691"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-function-name@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-function-name/-/babel-plugin-transform-es2015-function-name-6.24.1.tgz#834c89853bc36b1af0f3a4c5dbaa94fd8eacaa8b"
+  dependencies:
+    babel-helper-function-name "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
+babel-plugin-transform-es2015-literals@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-literals/-/babel-plugin-transform-es2015-literals-6.22.0.tgz#4f54a02d6cd66cf915280019a31d31925377ca2e"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-modules-amd@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-amd/-/babel-plugin-transform-es2015-modules-amd-6.24.1.tgz#3b3e54017239842d6d19c3011c4bd2f00a00d154"
+  dependencies:
+    babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-plugin-transform-es2015-modules-commonjs@^6.0.12, babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.0.tgz#0d8394029b7dc6abe1a97ef181e00758dd2e5d8a"
   dependencies:
@@ -393,7 +504,30 @@ babel-plugin-transform-es2015-modules-commonjs@^6.0.12:
     babel-template "^6.26.0"
     babel-types "^6.26.0"
 
-babel-plugin-transform-es2015-parameters@^6.0.2:
+babel-plugin-transform-es2015-modules-systemjs@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz#ff89a142b9119a906195f5f106ecf305d9407d23"
+  dependencies:
+    babel-helper-hoist-variables "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-plugin-transform-es2015-modules-umd@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-umd/-/babel-plugin-transform-es2015-modules-umd-6.24.1.tgz#ac997e6285cd18ed6176adb607d602344ad38468"
+  dependencies:
+    babel-plugin-transform-es2015-modules-amd "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-plugin-transform-es2015-object-super@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-object-super/-/babel-plugin-transform-es2015-object-super-6.24.1.tgz#24cef69ae21cb83a7f8603dad021f572eb278f8d"
+  dependencies:
+    babel-helper-replace-supers "^6.24.1"
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-parameters@^6.0.2, babel-plugin-transform-es2015-parameters@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-parameters/-/babel-plugin-transform-es2015-parameters-6.24.1.tgz#57ac351ab49caf14a97cd13b09f66fdf0a625f2b"
   dependencies:
@@ -404,13 +538,20 @@ babel-plugin-transform-es2015-parameters@^6.0.2:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-spread@^6.1.4:
+babel-plugin-transform-es2015-shorthand-properties@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-shorthand-properties/-/babel-plugin-transform-es2015-shorthand-properties-6.24.1.tgz#24f875d6721c87661bbd99a4622e51f14de38aa0"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
+babel-plugin-transform-es2015-spread@^6.1.4, babel-plugin-transform-es2015-spread@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-spread/-/babel-plugin-transform-es2015-spread-6.22.0.tgz#d6d68a99f89aedc4536c81a542e8dd9f1746f8d1"
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-sticky-regex@^6.0.2:
+babel-plugin-transform-es2015-sticky-regex@^6.0.2, babel-plugin-transform-es2015-sticky-regex@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-sticky-regex/-/babel-plugin-transform-es2015-sticky-regex-6.24.1.tgz#00c1cdb1aca71112cdf0cf6126c2ed6b457ccdbc"
   dependencies:
@@ -418,7 +559,19 @@ babel-plugin-transform-es2015-sticky-regex@^6.0.2:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-unicode-regex@^6.0.2:
+babel-plugin-transform-es2015-template-literals@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-template-literals/-/babel-plugin-transform-es2015-template-literals-6.22.0.tgz#a84b3450f7e9f8f1f6839d6d687da84bb1236d8d"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-typeof-symbol@^6.22.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-typeof-symbol/-/babel-plugin-transform-es2015-typeof-symbol-6.23.0.tgz#dec09f1cddff94b52ac73d505c84df59dcceb372"
+  dependencies:
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-es2015-unicode-regex@^6.0.2, babel-plugin-transform-es2015-unicode-regex@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-unicode-regex/-/babel-plugin-transform-es2015-unicode-regex-6.24.1.tgz#d38b12f42ea7323f729387f18a7c5ae1faeb35e9"
   dependencies:
@@ -426,6 +579,12 @@ babel-plugin-transform-es2015-unicode-regex@^6.0.2:
     babel-runtime "^6.22.0"
     regexpu-core "^2.0.0"
 
+babel-plugin-transform-regenerator@^6.24.1:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz#e0703696fbde27f0a3efcacf8b4dca2f7b3a8f2f"
+  dependencies:
+    regenerator-transform "^0.10.0"
+
 babel-plugin-transform-strict-mode@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-strict-mode/-/babel-plugin-transform-strict-mode-6.24.1.tgz#d5faf7aa578a65bbe591cf5edae04a0c67020758"
@@ -433,6 +592,35 @@ babel-plugin-transform-strict-mode@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
+babel-preset-es2015@^6.24.0:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz#d44050d6bc2c9feea702aaf38d727a0210538939"
+  dependencies:
+    babel-plugin-check-es2015-constants "^6.22.0"
+    babel-plugin-transform-es2015-arrow-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoped-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoping "^6.24.1"
+    babel-plugin-transform-es2015-classes "^6.24.1"
+    babel-plugin-transform-es2015-computed-properties "^6.24.1"
+    babel-plugin-transform-es2015-destructuring "^6.22.0"
+    babel-plugin-transform-es2015-duplicate-keys "^6.24.1"
+    babel-plugin-transform-es2015-for-of "^6.22.0"
+    babel-plugin-transform-es2015-function-name "^6.24.1"
+    babel-plugin-transform-es2015-literals "^6.22.0"
+    babel-plugin-transform-es2015-modules-amd "^6.24.1"
+    babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
+    babel-plugin-transform-es2015-modules-systemjs "^6.24.1"
+    babel-plugin-transform-es2015-modules-umd "^6.24.1"
+    babel-plugin-transform-es2015-object-super "^6.24.1"
+    babel-plugin-transform-es2015-parameters "^6.24.1"
+    babel-plugin-transform-es2015-shorthand-properties "^6.24.1"
+    babel-plugin-transform-es2015-spread "^6.22.0"
+    babel-plugin-transform-es2015-sticky-regex "^6.24.1"
+    babel-plugin-transform-es2015-template-literals "^6.22.0"
+    babel-plugin-transform-es2015-typeof-symbol "^6.22.0"
+    babel-plugin-transform-es2015-unicode-regex "^6.24.1"
+    babel-plugin-transform-regenerator "^6.24.1"
+
 babel-preset-es2016-node5@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/babel-preset-es2016-node5/-/babel-preset-es2016-node5-1.1.2.tgz#5ec43d2d8bf41d5315804740cc38f0ddeab26986"
@@ -459,7 +647,7 @@ babel-register@^6.26.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.15"
 
-babel-runtime@^6.22.0, babel-runtime@^6.26.0:
+babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   dependencies:
@@ -497,7 +685,7 @@ babel-traverse@^6.24.1, babel-traverse@^6.26.0:
     invariant "^2.2.2"
     lodash "^4.17.4"
 
-babel-types@^6.24.1, babel-types@^6.26.0:
+babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
   dependencies:
@@ -506,6 +694,13 @@ babel-types@^6.24.1, babel-types@^6.26.0:
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
+babelify@^7.3.0:
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/babelify/-/babelify-7.3.0.tgz#aa56aede7067fd7bd549666ee16dc285087e88e5"
+  dependencies:
+    babel-core "^6.0.14"
+    object-assign "^4.0.0"
+
 babylon@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
@@ -1757,6 +1952,26 @@ ethereumjs-util@^4.3.0:
     rlp "^2.0.0"
     secp256k1 "^3.0.1"
 
+ethereumjs-util@^5.1.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.1.2.tgz#25ba0215cbb4c2f0b108a6f96af2a2e62e45921f"
+  dependencies:
+    babel-preset-es2015 "^6.24.0"
+    babelify "^7.3.0"
+    bn.js "^4.8.0"
+    create-hash "^1.1.2"
+    ethjs-util "^0.1.3"
+    keccak "^1.0.2"
+    rlp "^2.0.0"
+    secp256k1 "^3.0.1"
+
+ethjs-util@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/ethjs-util/-/ethjs-util-0.1.4.tgz#1c8b6879257444ef4d3f3fbbac2ded12cd997d93"
+  dependencies:
+    is-hex-prefixed "1.0.0"
+    strip-hex-prefix "1.0.0"
+
 event-emitter@~0.3.5:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
@@ -2832,6 +3047,10 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
+is-hex-prefixed@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz#7d8d37e6ad77e5d127148913c573e082d777f554"
+
 is-my-json-valid@^2.10.0:
   version "2.16.1"
   resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.1.tgz#5a846777e2c2620d1e69104e5d3a03b1f6088f11"
@@ -3074,6 +3293,16 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+keccak@^1.0.2:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/keccak/-/keccak-1.3.0.tgz#3681bd99ad3d0354ddb29b9040c1b6560cce08ac"
+  dependencies:
+    bindings "^1.2.1"
+    inherits "^2.0.3"
+    nan "^2.2.1"
+    prebuild-install "^2.0.0"
+    safe-buffer "^5.1.0"
+
 keccakjs@^0.2.0, keccakjs@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/keccakjs/-/keccakjs-0.2.1.tgz#1d633af907ef305bbf9f2fa616d56c44561dfa4d"
@@ -3706,7 +3935,7 @@ object-assign@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-3.0.0.tgz#9bedd5ca0897949bca47e7ff408062d549f587f2"
 
-object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0:
+object-assign@^4, object-assign@^4.0.0, object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
@@ -4046,6 +4275,10 @@ pretty-hrtime@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz#b7e3ea42435a4c9b2759d99e0f201eb195802ee1"
 
+private@^0.1.6:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
+
 private@^0.1.7:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
@@ -4266,6 +4499,14 @@ regenerator-runtime@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.0.tgz#7e54fe5b5ccd5d6624ea6255c3473be090b802e1"
 
+regenerator-transform@^0.10.0:
+  version "0.10.1"
+  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.10.1.tgz#1e4996837231da8b7f3cf4114d71b5691a0680dd"
+  dependencies:
+    babel-runtime "^6.18.0"
+    babel-types "^6.19.0"
+    private "^0.1.6"
+
 regex-cache@^0.4.2:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.4.tgz#75bdc58a2a1496cec48a12835bc54c8d562336dd"
@@ -4864,6 +5105,12 @@ strip-dirs@^2.0.0:
   dependencies:
     is-natural-number "^4.0.1"
 
+strip-hex-prefix@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz#0c5f155fef1151373377de9dbb588da05500e36f"
+  dependencies:
+    is-hex-prefixed "1.0.0"
+
 strip-indent@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-1.0.1.tgz#0c7962a6adefa7bbd4ac366460a638552ae1a0a2"