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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="BitcoinZ 2.0.7 RPC Docs - getblocktemplate">
<meta name="author" content="">
<title>getblocktemplate - BitcoinZ 2.0.7 RPC Docs</title>
<link href="./bootstrap.min.css" rel="stylesheet">
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<h1>getblocktemplate - BitcoinZ 2.0.7 RPC</h1>
<pre>getblocktemplate ( "jsonrequestobject" )
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.
See https://en.bitcoin.it/wiki/BIP_0022 for full specification.
Arguments:
1. "jsonrequestobject" (string, optional) A json object in the following spec
{
"mode":"template" (string, optional) This must be set to "template" or omitted
"capabilities":[ (array, optional) A list of strings
"support" (string) client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'
,...
]
}
Result:
{
"version" : n, (numeric) The block version
"previousblockhash" : "xxxx", (string) The hash of current highest block
"finalsaplingroothash" : "xxxx", (string) The hash of the final sapling root
"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)
"hash" : "xxxx", (string) hash/id encoded in little-endian hexadecimal
"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 number of SigOps, as counted for purposes of block limits; if key is not present, sigop count is unknown and clients MUST NOT assume there aren't any
"required" : true|false (boolean) if provided and true, this transaction must be in the final block
}
,...
],
"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
"curtime" : ttt, (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)
"bits" : "xxx", (string) compressed target of next block
"height" : n (numeric) The height of the next block
}
Examples:
> bitcoinz-cli getblocktemplate
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getblocktemplate", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8032/
</pre>
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