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[[appdxbitcoinimpproposals]]
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[appendix]
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== Bitcoin Improvement Proposals
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((("Bitcoin improvement proposals", id="ix_appdx-bips-asciidoc0", range="startofrange")))Bitcoin improvement proposals are design documents providing information to the bitcoin community, or describing a new feature for bitcoin or its processes or environment.
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As per BIP-01 _BIP Purpose and Guidelines_, there are three kinds of BIP:
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_Standard_ BIP:: Describes any change that affects most or all bitcoin implementations, such as a change to the network protocol, a change in block or transaction validity rules, or any change or addition that affects the interoperability of applications using bitcoin.
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_Informational_ BIP:: Describes a bitcoin design issue, or provides general guidelines or information to the bitcoin community, but does not propose a new feature. Informational BIPs do not necessarily represent a bitcoin community consensus or recommendation, so users and implementors may ignore informational BIPs or follow their advice.
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_Process_ BIP:: Describes a bitcoin process, or proposes a change to (or an event in) a process. Process BIPs are like standard BIPs but apply to areas other than the bitcoin protocol itself. They might propose an implementation, but not to bitcoin's codebase; they often require community consensus; and unlike informational BIPs, they are more than recommendations, and users are typically not free to ignore them. Examples include procedures, guidelines, changes to the decision-making process, and changes to the tools or environment used in Bitcoin development. Any meta-BIP is also considered a process BIP.
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Bitcoin improvement proposals are recorded in a versioned repository on https://github.com/bitcoin/bips[GitHub]. <<table_d-1>> shows a snapshot of BIPs in the Fall of 2014. Consult the authoritative repository for up-to-date information on existing BIPs and their contents.
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[[table_d-1]]
.Snapshot of BIPs
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[options="header"]
|=======================================================================
|BIP# | Link | Title |Owner |Type |Status
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|[[bip-01]]1|https://github.com/bitcoin/bips/blob/master/bip-0001.mediawiki|BIP Purpose and Guidelines |Amir Taaki
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|Standard |Active
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|[[bip-10]]10|https://github.com/bitcoin/bips/blob/master/bip-0010.mediawiki|Multi-Sig Transaction Distribution |Alan
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Reiner |Informational |Draft
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|[[bip-11]]11|https://github.com/bitcoin/bips/blob/master/bip-0011.mediawiki|M-of-N Standard Transactions |Gavin
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Andresen |Standard |Accepted
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|[[bip-12]]12|https://github.com/bitcoin/bips/blob/master/bip-0012.mediawiki|OP_EVAL |Gavin Andresen |Standard
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|Withdrawn
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|[[bip-13]]13|https://github.com/bitcoin/bips/blob/master/bip-0013.mediawiki|Address Format for pay-to-script-hash
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|Gavin Andresen |Standard |Final
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|[[bip-14]]14|https://github.com/bitcoin/bips/blob/master/bip-0014.mediawiki|Protocol Version and User Agent |Amir
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Taaki, Patrick Strateman |Standard |Accepted
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|[[bip-15]]15|https://github.com/bitcoin/bips/blob/master/bip-0015.mediawiki|Aliases |Amir Taaki |Standard |Withdrawn
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|[[bip-16]]16|https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki|Pay To Script Hash |Gavin Andresen
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|Standard |Accepted
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|[[bip-17]]17|https://github.com/bitcoin/bips/blob/master/bip-0017.mediawiki|OP_CHECKHASHVERIFY (CHV) |Luke Dashjr
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|Withdrawn |Draft
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|[[bip-18]]18|https://github.com/bitcoin/bips/blob/master/bip-0018.mediawikilink:|hashScriptCheck |Luke Dashjr |Standard
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|Draft
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|[[bip-19]]19|https://github.com/bitcoin/bips/blob/master/bip-0019.mediawiki|M-of-N Standard Transactions (Low SigOp)
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|Luke Dashjr |Standard |Draft
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|[[bip-20]]20|https://github.com/bitcoin/bips/blob/master/bip-0020.mediawiki|URI Scheme |Luke Dashjr |Standard
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|Replaced
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|[[bip-21]]21|https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki|URI Scheme |Nils Schneider, Matt Corallo
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|Standard |Accepted
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|[[bip-22]]22|https://github.com/bitcoin/bips/blob/master/bip-0022.mediawiki|getblocktemplate - Fundamentals |Luke
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Dashjr |Standard |Accepted
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|[[bip-23]]23|https://github.com/bitcoin/bips/blob/master/bip-0023.mediawiki|getblocktemplate - Pooled Mining |Luke
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Dashjr |Standard |Accepted
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|[[bip-30]]30|https://github.com/bitcoin/bips/blob/master/bip-0030.mediawiki|Duplicate transactions |Pieter Wuille
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|Standard |Accepted
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|[[bip-31]]31|https://github.com/bitcoin/bips/blob/master/bip-0031.mediawiki|Pong message |Mike Hearn |Standard
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|Accepted
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|[[bip-32]]32|https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki|Hierarchical Deterministic Wallets |Pieter
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Wuille |Informational |Accepted
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|[[bip-33]]33|https://github.com/bitcoin/bips/blob/master/bip-0033.mediawiki|Stratized Nodes |Amir Taaki |Standard
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|Draft
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|[[bip-34]]34|https://github.com/bitcoin/bips/blob/master/bip-0034.mediawiki|Block v2, Height in coinbase |Gavin
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Andresen |Standard |Accepted
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|[[bip-35]]35|https://github.com/bitcoin/bips/blob/master/bip-0035.mediawiki|mempool message |Jeff Garzik |Standard
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|Accepted
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|[[bip-36]]36|https://github.com/bitcoin/bips/blob/master/bip-0036.mediawiki|Custom Services |Stefan Thomas |Standard
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|Draft
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|[[bip-37]]37|https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki|Bloom filtering |Mike Hearn and Matt
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Corallo |Standard |Accepted
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|[[bip-38]]38|https://github.com/bitcoin/bips/blob/master/bip-0038.mediawiki|Passphrase-protected private key |Mike
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Caldwell |Standard |Draft
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|[[bip-39]]39|https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki|Mnemonic code for generating deterministic
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keys |Slush |Standard |Draft
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|[[bip-40]]40||Stratum wire protocol |Slush |Standard |BIP number allocated
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|[[bip-41]]41||Stratum mining protocol |Slush |Standard |BIP number allocated
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|[[bip-42]]42|https://github.com/bitcoin/bips/blob/master/bip-0042.mediawiki|A finite monetary supply for bitcoin
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|Pieter Wuille |Standard |Draft
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|[[bip-43]]43|https://github.com/bitcoin/bips/blob/master/bip-0043.mediawiki|Purpose Field for Deterministic Wallets
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|Slush |Standard |Draft
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|[[bip-44]]44|https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki|Multi-Account Hierarchy for Deterministic
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Wallets |Slush |Standard |Draft
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|[[bip-50]]50|https://github.com/bitcoin/bips/blob/master/bip-0050.mediawiki|March 2013 Chain Fork Post-Mortem |Gavin
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Andresen |Informational |Draft
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|[[bip-60]]60|https://github.com/bitcoin/bips/blob/master/bip-0060.mediawiki|Fixed Length "version" Message
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(Relay-Transactions Field) |Amir Taaki |Standard |Draft
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|[[bip-61]]61|https://github.com/bitcoin/bips/blob/master/bip-0061.mediawiki|"reject" P2P message |Gavin Andresen
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|Standard |Draft
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|[[bip-62]]62|https://github.com/bitcoin/bips/blob/master/bip-0062.mediawiki|Dealing with malleability |Pieter Wuille
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|Standard |Draft
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|[[bip-63]]63||Stealth Addresses |Peter Todd |Standard |BIP number allocated
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|[[bip-64]]64|https://github.com/bitcoin/bips/blob/master/bip-0064.mediawiki|getutxos message |Mike Hearn |Standard
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|Draft
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|[[bip-70]]70|https://github.com/bitcoin/bips/blob/master/bip-0070.mediawiki|Payment protocol |Gavin Andresen |Standard
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|Draft
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|[[bip-71]]71|https://github.com/bitcoin/bips/blob/master/bip-0071.mediawiki|Payment protocol MIME types |Gavin
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Andresen |Standard |Draft
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|[[bip-72]]72|https://github.com/bitcoin/bips/blob/master/bip-0072.mediawiki|Payment protocol URIs |Gavin Andresen
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|Standard |Draft
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|[[bip-73]]73|https://github.com/bitcoin/bips/blob/master/bip-0073.mediawiki|Use "Accept" header with Payment Request
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URLs |Stephen Pair |Standard |Draft(((range="endofrange", startref="ix_appdx-bips-asciidoc0")))
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|=======================================================================
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