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People wishing to submit BIPs, first should propose their idea or document to the mailing list. After discussion, please open a PR. After copy-editing and acceptance, it will be published here.

We are fairly liberal with approving BIPs, and try not to be too involved in decision making on behalf of the community. The exception is in very rare cases of dispute resolution when a decision is contentious and cannot be agreed upon. In those cases, the conservative option will always be preferred.

Having a BIP here does not make it a formally accepted standard until its status becomes Final or Active.

Those proposing changes should consider that ultimately consent may rest with the consensus of the Bitcoin users (see also: economic majority).

Number Layer Title Owner Type Status
1 BIP Purpose and Guidelines Amir Taaki Process Replaced
2 BIP process, revised Luke Dashjr Process Active
8 Version bits with lock-in by height Shaolin Fry Informational Draft
9 Version bits with timeout and delay Pieter Wuille, Peter Todd, Greg Maxwell, Rusty Russell Informational Final
10 Applications Multi-Sig Transaction Distribution Alan Reiner Informational Withdrawn
11 Applications M-of-N Standard Transactions Gavin Andresen Standard Final
12 Consensus (soft fork) OP_EVAL Gavin Andresen Standard Withdrawn
13 Applications Address Format for pay-to-script-hash Gavin Andresen Standard Final
14 Peer Services Protocol Version and User Agent Amir Taaki, Patrick Strateman Standard Final
15 Applications Aliases Amir Taaki Standard Deferred
16 Consensus (soft fork) Pay to Script Hash Gavin Andresen Standard Final
17 Consensus (soft fork) OP_CHECKHASHVERIFY (CHV) Luke Dashjr Standard Withdrawn
18 Consensus (soft fork) hashScriptCheck Luke Dashjr Standard Proposed
19 Applications M-of-N Standard Transactions (Low SigOp) Luke Dashjr Standard Draft
20 Applications URI Scheme Luke Dashjr Standard Replaced
21 Applications URI Scheme Nils Schneider, Matt Corallo Standard Final
22 API/RPC getblocktemplate - Fundamentals Luke Dashjr Standard Final
23 API/RPC getblocktemplate - Pooled Mining Luke Dashjr Standard Final
30 Consensus (soft fork) Duplicate transactions Pieter Wuille Standard Final
31 Peer Services Pong message Mike Hearn Standard Final
32 Applications Hierarchical Deterministic Wallets Pieter Wuille Informational Final
33 Peer Services Stratized Nodes Amir Taaki Standard Draft
34 Consensus (soft fork) Block v2, Height in Coinbase Gavin Andresen Standard Final
35 Peer Services mempool message Jeff Garzik Standard Final
36 Peer Services Custom Services Stefan Thomas Standard Draft
37 Peer Services Connection Bloom filtering Mike Hearn, Matt Corallo Standard Final
38 Applications Passphrase-protected private key Mike Caldwell, Aaron Voisine Standard Draft
39 Applications Mnemonic code for generating deterministic keys Marek Palatinus, Pavol Rusnak, Aaron Voisine, Sean Bowe Standard Proposed
40 API/RPC Stratum wire protocol Marek Palatinus Standard BIP number allocated
41 API/RPC Stratum mining protocol Marek Palatinus Standard BIP number allocated
42 Consensus (soft fork) A finite monetary supply for Bitcoin Pieter Wuille Standard Final
43 Applications Purpose Field for Deterministic Wallets Marek Palatinus, Pavol Rusnak Informational Draft
44 Applications Multi-Account Hierarchy for Deterministic Wallets Marek Palatinus, Pavol Rusnak Standard Proposed
45 Applications Structure for Deterministic P2SH Multisignature Wallets Manuel Araoz, Ryan X. Charles, Matias Alejo Garcia Standard Proposed
47 Applications Reusable Payment Codes for Hierarchical Deterministic Wallets Justus Ranvier Informational Draft
49 Applications Derivation scheme for P2WPKH-nested-in-P2SH based accounts Daniel Weigl Informational Draft
50 March 2013 Chain Fork Post-Mortem Gavin Andresen Informational Final
60 Peer Services Fixed Length "version" Message (Relay-Transactions Field) Amir Taaki Standard Draft
61 Peer Services Reject P2P message Gavin Andresen Standard Final
62 Consensus (soft fork) Dealing with malleability Pieter Wuille Standard Withdrawn
63 Applications Stealth Addresses Peter Todd Standard BIP number allocated
64 Peer Services getutxo message Mike Hearn Standard Draft
65 Consensus (soft fork) OP_CHECKLOCKTIMEVERIFY Peter Todd Standard Final
66 Consensus (soft fork) Strict DER signatures Pieter Wuille Standard Final
67 Applications Deterministic Pay-to-script-hash multi-signature addresses through public key sorting Thomas Kerin, Jean-Pierre Rupp, Ruben de Vries Standard Proposed
68 Consensus (soft fork) Relative lock-time using consensus-enforced sequence numbers Mark Friedenbach, BtcDrak, Nicolas Dorier, kinoshitajona Standard Final
69 Applications Lexicographical Indexing of Transaction Inputs and Outputs Kristov Atlas Informational Proposed
70 Applications Payment Protocol Gavin Andresen, Mike Hearn Standard Final
71 Applications Payment Protocol MIME types Gavin Andresen Standard Final
72 Applications bitcoin: uri extensions for Payment Protocol Gavin Andresen Standard Final
73 Applications Use "Accept" header for response type negotiation with Payment Request URLs Stephen Pair Standard Final
74 Applications Allow zero value OP_RETURN in Payment Protocol Toby Padilla Standard Draft
75 Applications Out of Band Address Exchange using Payment Protocol Encryption Justin Newton, Matt David, Aaron Voisine, James MacWhyte Standard Draft
80 Hierarchy for Non-Colored Voting Pool Deterministic Multisig Wallets Justus Ranvier, Jimmy Song Informational Deferred
81 Hierarchy for Colored Voting Pool Deterministic Multisig Wallets Justus Ranvier, Jimmy Song Informational Deferred
83 Applications Dynamic Hierarchical Deterministic Key Trees Eric Lombrozo Standard Draft
84 Applications Derivation scheme for P2WPKH based accounts Pavol Rusnak Informational Draft
90 Buried Deployments Suhas Daftuar Informational Draft
91 Consensus (soft fork) Reduced threshold Segwit MASF James Hilliard Standard Final
98 Consensus (soft fork) Fast Merkle Trees Mark Friedenbach, Kalle Alm, BtcDrak Standard Draft
99 Motivation and deployment of consensus rule changes ([soft/hard]forks) Jorge Timón Informational Draft
101 Consensus (hard fork) Increase maximum block size Gavin Andresen Standard Withdrawn
102 Consensus (hard fork) Block size increase to 2MB Jeff Garzik Standard Draft
103 Consensus (hard fork) Block size following technological growth Pieter Wuille Standard Draft
104 Consensus (hard fork) 'Block75' - Max block size like difficulty t.khan Standard Draft
105 Consensus (hard fork) Consensus based block size retargeting algorithm BtcDrak Standard Draft
106 Consensus (hard fork) Dynamically Controlled Bitcoin Block Size Max Cap Upal Chakraborty Standard Draft
107 Consensus (hard fork) Dynamic limit on the block size Washington Y. Sanchez Standard Draft
109 Consensus (hard fork) Two million byte size limit with sigop and sighash limits Gavin Andresen Standard Rejected
111 Peer Services NODE_BLOOM service bit Matt Corallo, Peter Todd Standard Proposed
112 Consensus (soft fork) CHECKSEQUENCEVERIFY BtcDrak, Mark Friedenbach, Eric Lombrozo Standard Final
113 Consensus (soft fork) Median time-past as endpoint for lock-time calculations Thomas Kerin, Mark Friedenbach Standard Final
114 Consensus (soft fork) Merkelized Abstract Syntax Tree Johnson Lau Standard Draft
115 Consensus (soft fork) Generic anti-replay protection using Script Luke Dashjr Standard Draft
116 Consensus (soft fork) MERKLEBRANCHVERIFY Mark Friedenbach, Kalle Alm, BtcDrak Standard Draft
117 Consensus (soft fork) Tail Call Execution Semantics Mark Friedenbach, Kalle Alm, BtcDrak Standard Draft
118 Consensus (soft fork) SIGHASH_NOINPUT Christian Decker Standard Draft
120 Applications Proof of Payment Kalle Rosenbaum Standard Withdrawn
121 Applications Proof of Payment URI scheme Kalle Rosenbaum Standard Withdrawn
122 Applications URI scheme for Blockchain references / exploration Marco Pontello Standard Draft
123 BIP Classification Eric Lombrozo Process Active
124 Applications Hierarchical Deterministic Script Templates Eric Lombrozo, William Swanson Informational Draft
125 Applications Opt-in Full Replace-by-Fee Signaling David A. Harding, Peter Todd Standard Proposed
126 Best Practices for Heterogeneous Input Script Transactions Kristov Atlas Informational Draft
130 Peer Services sendheaders message Suhas Daftuar Standard Proposed
131 Consensus (hard fork) "Coalescing Transaction" Specification (wildcard inputs) Chris Priest Standard Draft
132 Committee-based BIP Acceptance Process Andy Chase Process Withdrawn
133 Peer Services feefilter message Alex Morcos Standard Draft
134 Consensus (hard fork) Flexible Transactions Tom Zander Standard Draft
135 Generalized version bits voting Sancho Panza Informational Draft
140 Consensus (soft fork) Normalized TXID Christian Decker Standard Draft
141 Consensus (soft fork) Segregated Witness (Consensus layer) Eric Lombrozo, Johnson Lau, Pieter Wuille Standard Final
142 Applications Address Format for Segregated Witness Johnson Lau Standard Withdrawn
143 Consensus (soft fork) Transaction Signature Verification for Version 0 Witness Program Johnson Lau, Pieter Wuille Standard Final
144 Peer Services Segregated Witness (Peer Services) Eric Lombrozo, Pieter Wuille Standard Final
145 API/RPC getblocktemplate Updates for Segregated Witness Luke Dashjr Standard Final
146 Consensus (soft fork) Dealing with signature encoding malleability Johnson Lau, Pieter Wuille Standard Draft
147 Consensus (soft fork) Dealing with dummy stack element malleability Johnson Lau Standard Final
148 Consensus (soft fork) Mandatory activation of segwit deployment Shaolin Fry Standard Final
149 Consensus (soft fork) Segregated Witness (second deployment) Shaolin Fry Standard Withdrawn
150 Peer Services Peer Authentication Jonas Schnelli Standard Draft
151 Peer Services Peer-to-Peer Communication Encryption Jonas Schnelli Standard Draft
152 Peer Services Compact Block Relay Matt Corallo Standard Draft
154 Peer Services Rate Limiting via peer specified challenges Karl-Johan Alm Standard Draft
157 Peer Services Client Side Block Filtering Olaoluwa Osuntokun, Alex Akselrod, Jim Posen Standard Draft
158 Peer Services Compact Block Filters for Light Clients Olaoluwa Osuntokun, Alex Akselrod Standard Draft
159 Peer Services NODE_NETWORK_LIMITED service bit Jonas Schnelli Standard Draft
171 Applications Currency/exchange rate information API Luke Dashjr Standard Draft
173 Applications Base32 address format for native v0-16 witness outputs Pieter Wuille, Greg Maxwell Informational Final
174 Applications Partially Signed Bitcoin Transaction Format Andrew Chow Standard Proposed
175 Applications Pay to Contract Protocol Omar Shibli, Nicholas Gregory Informational Draft
176 Bits Denomination Jimmy Song Informational Draft
178 Applications Version Extended WIF Karl-Johan Alm Standard Draft
180 Peer Services Block size/weight fraud proof Luke Dashjr Standard Draft
199 Applications Hashed Time-Locked Contract transactions Sean Bowe, Daira Hopwood Standard Draft