Getblocktemplate - Revision history

WikiR: Removed butterflylabs.com (irrelevant) and eclipsemc.com, pool.itzod.ru, polmine.pl (broken/inactive) for improved accuracy.

2025-02-22T20:25:36Z

Removed butterflylabs.com (irrelevant) and eclipsemc.com, pool.itzod.ru, polmine.pl (broken/inactive) for improved accuracy.

← Older revision		Revision as of 20:25, 22 February 2025
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	* [https://bitcointalk.org/?topic=28402.msg357369#msg357369 cgminer 2.9+]		* [https://bitcointalk.org/?topic=28402.msg357369#msg357369 cgminer 2.9+]
	* [http://ufasoft.com/open/bitcoin/ Ufasoft Bitcoin Miner 0.39+]		* [http://ufasoft.com/open/bitcoin/ Ufasoft Bitcoin Miner 0.39+]
	* [http://www.butterflylabs.com/drivers/ Butterfly Labs's EasyMiner]

	To take advantage of getblocktemplate, you also need a compatible pool:		To take advantage of getblocktemplate, you also need a compatible pool:
	* [https://bitminter.com BitMinter]		* [https://bitminter.com BitMinter]
	* [https://eclipsemc.com/ EclipseMC]
	* [http://eligius.st Eligius]		* [http://eligius.st Eligius]
	* [https://pool.itzod.ru/ itzod.ru]
	* [http://polmine.pl PolMine]
	* Encourage your favourite pool(s) to support decentralized mining!		* Encourage your favourite pool(s) to support decentralized mining!

Luke-jr: /* Using libblkmaker (C library) */ Revoke stale offer

2019-03-26T02:01:26Z

Using libblkmaker (C library): Revoke stale offer

← Older revision		Revision as of 02:01, 26 March 2019
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	Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.		Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.
	libblkmaker currently only supports the [[API_reference_(JSON-RPC)#C\|Jansson JSON library]], but was designed such that it can easily be ported to others;		libblkmaker currently only supports the [[API_reference_(JSON-RPC)#C\|Jansson JSON library]], but was designed such that it can easily be ported to others;
	~~[[User:Luke-jr\|Luke Dashjr]] is willing to do this porting to other JSON libraries free of charge on request.~~

	=====Using python-blkmaker=====		=====Using python-blkmaker=====

Luke-jr: /* How to build block header */ Remove obsolete block version

2018-01-15T04:22:22Z

How to build block header: Remove obsolete block version

← Older revision		Revision as of 04:22, 15 January 2018
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	Assemble the block header as laid out in the Bitcoin [[block hashing algorithm]], using the data provided in the block template along with your very own merkle root.		Assemble the block header as laid out in the Bitcoin [[block hashing algorithm]], using the data provided in the block template along with your very own merkle root.
	Note that miners are expected to check the "version" number, and should not create blocks with versions they do not understand unless the server instructs them to do so with the "version/force" or "version/reduce" mutations - you don't need to support those, but if you don't support the version the server has provided, understand that the server may reject submissions if they don't meet some unknown future rules.		Note that miners are expected to check the "version" number, and should not create blocks with versions they do not understand unless the server instructs them to do so with the "version/force" or "version/reduce" mutations - you don't need to support those, but if you don't support the version the server has provided, understand that the server may reject submissions if they don't meet some unknown future rules.
	~~As of this time, the current Bitcoin block version is 3.~~

	Python example:		Python example:

Luke-jr: Update libblkmaker to GitHub

2018-01-15T04:21:26Z

Update libblkmaker to GitHub

← Older revision		Revision as of 04:21, 15 January 2018
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	====Mining software====		====Mining software====
	=====Using libblkmaker (C library)=====		=====Using libblkmaker (C library)=====
	If your miner can include C libraries, you can harness [https://~~gitlab~~.com/bitcoin/libblkmaker libblkmaker] to do all the GBT interpretation for you:		If your miner can include C libraries, you can harness [https://github.com/bitcoin/libblkmaker libblkmaker] to do all the GBT interpretation for you:
	all your miner needs to do then is handle the networking (libblkmaker can prepare the JSON for you) and ask libblkmaker for data (block headers to search).		all your miner needs to do then is handle the networking (libblkmaker can prepare the JSON for you) and ask libblkmaker for data (block headers to search).
	Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.		Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.

Geremia: /* Using libblkmaker (C library) */ wikilinked Jansson JSON library

2015-11-02T13:16:45Z

Using libblkmaker (C library): wikilinked Jansson JSON library

← Older revision		Revision as of 13:16, 2 November 2015
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	all your miner needs to do then is handle the networking (libblkmaker can prepare the JSON for you) and ask libblkmaker for data (block headers to search).		all your miner needs to do then is handle the networking (libblkmaker can prepare the JSON for you) and ask libblkmaker for data (block headers to search).
	Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.		Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.
	libblkmaker currently only supports the Jansson JSON library, but was designed such that it can easily be ported to others;		libblkmaker currently only supports the [[API_reference_(JSON-RPC)#C\|Jansson JSON library]], but was designed such that it can easily be ported to others;
	[[User:Luke-jr\|Luke Dashjr]] is willing to do this porting to other JSON libraries free of charge on request.		[[User:Luke-jr\|Luke Dashjr]] is willing to do this porting to other JSON libraries free of charge on request.

TheRealSteve: /* How to build block header */

2015-08-22T12:15:56Z

How to build block header

← Older revision		Revision as of 12:15, 22 August 2015
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	Assemble the block header as laid out in the Bitcoin [[block hashing algorithm]], using the data provided in the block template along with your very own merkle root.		Assemble the block header as laid out in the Bitcoin [[block hashing algorithm]], using the data provided in the block template along with your very own merkle root.
	Note that miners are expected to check the "version" number, and should not create blocks with versions they do not understand unless the server instructs them to do so with the "version/force" or "version/reduce" mutations - you don't need to support those, but if you don't support the version the server has provided, understand that the server may reject submissions if they don't meet some unknown future rules.		Note that miners are expected to check the "version" number, and should not create blocks with versions they do not understand unless the server instructs them to do so with the "version/force" or "version/reduce" mutations - you don't need to support those, but if you don't support the version the server has provided, understand that the server may reject submissions if they don't meet some unknown future rules.
	As of this time, the current Bitcoin block version is ~~2, so it is safe to build blocks with version 1 or 2~~.		As of this time, the current Bitcoin block version is 3.

	Python example:		Python example:

Harding: Added Bitcoin Core documentation navbox

2015-08-17T16:02:30Z

Added Bitcoin Core documentation navbox

← Older revision		Revision as of 16:02, 17 August 2015
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	* [[BIP 0023\|BIP 23: getblocktemplate - Pooled Mining]] (technical)		* [[BIP 0023\|BIP 23: getblocktemplate - Pooled Mining]] (technical)
	{{lowercase}}		{{lowercase}}
			{{Bitcoin Core documentation}}

Evoskuil: /* Using libblkmaker (C library) */ Update git url

2015-07-23T02:29:16Z

Using libblkmaker (C library): Update git url

← Older revision		Revision as of 02:29, 23 July 2015
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	====Mining software====		====Mining software====
	=====Using libblkmaker (C library)=====		=====Using libblkmaker (C library)=====
	If your miner can include C libraries, you can harness [~~http~~://~~gitorious~~.~~org~~/bitcoin/libblkmaker libblkmaker] to do all the GBT interpretation for you:		If your miner can include C libraries, you can harness [https://gitlab.com/bitcoin/libblkmaker libblkmaker] to do all the GBT interpretation for you:
	all your miner needs to do then is handle the networking (libblkmaker can prepare the JSON for you) and ask libblkmaker for data (block headers to search).		all your miner needs to do then is handle the networking (libblkmaker can prepare the JSON for you) and ask libblkmaker for data (block headers to search).
	Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.		Note that libblkmaker does not provide a SHA256 implementation, and your miner needs to provide one for it to work.

Evoskuil: /* Using python-blkmaker */ Update git url

2015-07-23T02:28:39Z

Using python-blkmaker: Update git url

← Older revision		Revision as of 02:28, 23 July 2015
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	=====Using python-blkmaker=====		=====Using python-blkmaker=====
	If your miner is written in Python, you can harness [~~http~~://~~gitorious~~.~~org~~/bitcoin/python-blkmaker python-blkmaker], a native Python port of libblkmaker, to do all the GBT interpretation for you:		If your miner is written in Python, you can harness [https://gitlab.com/bitcoin/python-blkmaker python-blkmaker], a native Python port of libblkmaker, to do all the GBT interpretation for you:
	all your miner needs to do then is handle the networking (python-blkmaker can prepare the JSON for you) and ask the blkmaker module for data (block headers to search).		all your miner needs to do then is handle the networking (python-blkmaker can prepare the JSON for you) and ask the blkmaker module for data (block headers to search).
	A short example Python script is included that finds a prepared share using CPU mining.		A short example Python script is included that finds a prepared share using CPU mining.

Taras at 19:23, 10 July 2015

2015-07-10T19:23:04Z

← Older revision		Revision as of 19:23, 10 July 2015
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	* [[BIP 0022\|BIP 22: getblocktemplate - Fundamentals]] (technical)		* [[BIP 0022\|BIP 22: getblocktemplate - Fundamentals]] (technical)
	* [[BIP 0023\|BIP 23: getblocktemplate - Pooled Mining]] (technical)		* [[BIP 0023\|BIP 23: getblocktemplate - Pooled Mining]] (technical)
			{{lowercase}}