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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=1200px, shrink-to-fit=yes">
<meta name="description" content="Ghost Core RPC Docs - getblocktemplate">
<meta name="author" content="">
<title>getblocktemplate - Ghost Core RPC Docs</title>
<link href="./bootstrap.min.css" rel="stylesheet">
</head>
<style>
.card-body {
font-size:80%;
padding-top: 0.5em;
}
pre {
word-break: break-word;
white-space: pre-wrap;
}
</style>
<body>
<nav class="navbar navbar-dark bg-dark ">
<a class="navbar-brand" href="/">Ghost Core RPC docs</a>
</nav>
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<div class="col-8 col-lg-9 col-xl-10">
<h1>getblocktemplate - Ghost RPC</h1>
<pre>getblocktemplate ( TemplateRequest )
If the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.
It returns data needed to construct a block to work on.
For full specification, see BIPs 22, 23, 9, and 145:
https://github.com/bitcoin/bips/blob/master/bip-0022.mediawiki
https://github.com/bitcoin/bips/blob/master/bip-0023.mediawiki
https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki#getblocktemplate_changes
https://github.com/bitcoin/bips/blob/master/bip-0145.mediawiki
Arguments:
1. template_request (json object, optional) A json object in the following spec
{
"mode":"template" (string, optional) This must be set to "template", "proposal" (see BIP 23), or omitted
"capabilities":[ (array, optional) A list of strings
"support" (string) client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'
,...
],
"rules":[ (array, optional) A list of strings
"support" (string) client side supported softfork deployment
,...
]
}
Result:
{
"version" : n, (numeric) The preferred block version
"rules" : [ "rulename", ... ], (array of strings) specific block rules that are to be enforced
"vbavailable" : { (json object) set of pending, supported versionbit (BIP 9) softfork deployments
"rulename" : bitnumber (numeric) identifies the bit number as indicating acceptance and readiness for the named softfork rule
,...
},
"vbrequired" : n, (numeric) bit mask of versionbits the server requires set in submissions
"previousblockhash" : "xxxx", (string) The hash of current highest block
"transactions" : [ (array) contents of non-coinbase transactions that should be included in the next block
{
"data" : "xxxx", (string) transaction data encoded in hexadecimal (byte-for-byte)
"txid" : "xxxx", (string) transaction id encoded in little-endian hexadecimal
"hash" : "xxxx", (string) hash encoded in little-endian hexadecimal (including witness data)
"depends" : [ (array) array of numbers
n (numeric) transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is
,...
],
"fee": n, (numeric) difference in value between transaction inputs and outputs (in satoshis); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one
"sigops" : n, (numeric) total SigOps cost, as counted for purposes of block limits; if key is not present, sigop cost is unknown and clients MUST NOT assume it is zero
"weight" : n, (numeric) total transaction weight, as counted for purposes of block limits
"required" : true|false (boolean) if provided and true, this transaction must be in the final block
}
,...
],
"coinbaseaux" : { (json object) data that should be included in the coinbase's scriptSig content
"flags" : "xx" (string) key name is to be ignored, and value included in scriptSig
},
"coinbasevalue" : n, (numeric) maximum allowable input to coinbase transaction, including the generation award and transaction fees (in satoshis)
"coinbasetxn" : { ... }, (json object) information for coinbase transaction
"target" : "xxxx", (string) The hash target
"mintime" : xxx, (numeric) The minimum timestamp appropriate for next block time in seconds since epoch (Jan 1 1970 GMT)
"mutable" : [ (array of string) list of ways the block template may be changed
"value" (string) A way the block template may be changed, e.g. 'time', 'transactions', 'prevblock'
,...
],
"noncerange" : "00000000ffffffff",(string) A range of valid nonces
"sigoplimit" : n, (numeric) limit of sigops in blocks
"sizelimit" : n, (numeric) limit of block size
"weightlimit" : n, (numeric) limit of block weight
"curtime" : ttt, (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)
"bits" : "xxxxxxxx", (string) compressed target of next block
"height" : n (numeric) The height of the next block
}
Examples:
> ghost-cli getblocktemplate
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getblocktemplate", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:51935/
</pre>
<hr>
<p>
Ghost version: 0.16.0.1
</p>
<p>
Note that the RPC is from a regtest node (for completeness), so it includes some additional calls that a regular node doesn't have.
</p>
</div>
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Addressindex
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Anon
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Blockchain
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Generating
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Mining
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Mnemonic
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Network
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Rawtransactions
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Smsg
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Usbdevice
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Util
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Wallet
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<br>
<a href="getunconfirmedbalance.html">getunconfirmedbalance</a>
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