Bitcoin Dev Archive Topics

Address formats

Base58 with a checksum, then P2SH addresses starting with 3 (BIP 16, 2012), then bech32 for SegWit (BIP 173, 2017) and bech32m for Taproot (BIP 350). Each format was argued over here, usually at length, usually about the checksum.

155 threads and 1,294 messages, 7 Jul 2011 to 21 Sep 2026.

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BIPs

Bitcoin Optech

Bech32

The threads, in order

Listed by the date of each thread's first message.

2011 4 threads

7 Jul 2011
Version bytes Pieter Wuille
6 messages
10 Aug 2011
Change to multiple executables? John Smith
26 messages
12 Aug 2011
When parsing base58 data, accept [0O] as o, and [l|!] as 1 Luke Dashjr
2 messages
6 Dec 2011
Version bytes "2.0" Luke Dashjr
10 messages

2012 14 threads

27 Jan 2012
BIP 0020: URI Scheme Amir Taaki
7 messages
28 Jan 2012
BIP-12, 16, 17 Michael Gronager
2 messages
29 Jan 2012
Quote on BIP 16 Amir Taaki
9 messages
30 Jan 2012
BIP 16/17 deadlines Gavin Andresen
1 message
31 Jan 2012
BIP16/17 replacement Andy Parkins
9 messages
20 Feb 2012
BIP-13 Michael Gronager
8 messages
27 Feb 2012
BIP 16 status update Gavin Andresen
1 message
2 Mar 2012
Proposal for a new opcode Watson Ladd
8 messages
6 Mar 2012
P2SH status update Luke Dashjr
3 messages
16 Mar 2012
April 1 BIP16 switchover time is definite Gavin Andresen
2 messages
18 Mar 2012
BIP 16 changes (list inside) Amir Taaki
2 messages
1 Apr 2012
Can I make a BIP 16 payment? Amir Taaki
1 message
30 Apr 2012
BIP to improve the availability of blocks Rebroad (sourceforge)
5 messages
14 Jun 2012
BIP16 backport bug (0.4.x and 0.5.x stuck on block 177617) Luke Dashjr
1 message

2013 14 threads

8 Feb 2013
Blockchain as root CA for payment protocol Timo Hanke
8 messages
10 Apr 2013
To prevent arbitrary data storage in txouts — The Ultimate Solution Greg Maxwell
10 messages
14 Apr 2013
RFC: extend signmessage/verifymessage to P2SH multisig Peter Todd
6 messages
6 Jun 2013
address collision and undependability Melvin Carvalho
2 messages
11 Jun 2013
Bitcoin addresses -- opaque or not Melvin Carvalho
6 messages
18 Jun 2013
Optional "wallet-linkable" address format - Payment Protocol Alan Reiner
25 messages
21 Jun 2013
Standard public key base58-check address prefix? Nadav Ivgi
1 message
21 Jun 2013
Standard public key base58-check address prefix? Nadav Ivgi
2 messages
14 Jul 2013
Reward for P2SH IsStandard() patch. John Dillon
3 messages
19 Jul 2013
Proposal: Base58 encoded HD Wallet master seed with optional encryption Jean-Paul Kogelman
28 messages
27 Jul 2013
Two factor wallet with one-time-passwords Peter Todd
4 messages
28 Jul 2013
Opcode whitelist for P2SH? John Dillon
5 messages
5 Aug 2013
Safe auto-updating Wendell
7 messages
19 Dec 2013
DarkWallet Best Practices Peter Todd
8 messages

2014 16 threads

20 Jan 2014
BIP0039: Final call slush
17 messages
4 Feb 2014
bitcoinj 0.11 released, with p2sh, bip39 and payment protocol support Mike Hearn
12 messages
10 Mar 2014
Multisign payment protocol? Drak
35 messages
12 Mar 2014
sorting public keys for p2sh multisig transactions Ryan X. Charles
2 messages
15 Apr 2014
Bug in 2-of-3 transaction signing in Bitcoind? Matt Whitlock
10 messages
22 Apr 2014
Proposal: Base58 encoded HD Wallet root key with optional encryption William Yager
2 messages
25 Apr 2014
BIP - Selector Script Tier Nolan
9 messages
25 Apr 2014
BIP - Hash Locked Transaction Tier Nolan
10 messages
25 Apr 2014
New BIP32 structure for P2SH multisig wallets Manuel Araoz
18 messages
13 May 2014
Regtest Address Version Change Proposal Warren Togami
4 messages
17 Jun 2014
Proposal: relax the IsStandard rules for P2SH transactions Gavin Andresen
10 messages
16 Jul 2014
Pay to MultiScript hash: Jeremy Rubin
6 messages
27 Sep 2014
Bitcoin Core 0.9.3 has been released Wladimir J. van der Laan
3 messages
4 Nov 2014
BIP62 and future script upgrades Pieter Wuille
9 messages
27 Nov 2014
bitcoind as a library Mem Wallet
6 messages
4 Dec 2014
Serialised P2SH HD chains Luke Dashjr
8 messages

2015 14 threads

14 Jan 2015
convention/standard for sorting public keys for p2sh multisig transactions Ruben de Vries
16 messages
19 Feb 2015
What's what with addr relaying? Thy Shizzle
2 messages
24 Feb 2015
Providing Payment Request within URI Oleg Andreev OOO
6 messages
11 Mar 2015
BIP for standard multi-signature P2SH addresses Thomas Kerin
7 messages
13 Mar 2015
Proof of Payment Kalle Rosenbaum
15 messages
15 Apr 2015
75%/95% threshold for transaction versions s7r
19 messages
31 May 2015
Max Block Size: Simple Voting Procedure Stephen Morse
7 messages
12 Jul 2015
Bitcoin Core 0.11.0 released Wladimir J. van der Laan
4 messages
22 Jul 2015
BIP: Short Term Use Addresses for Scalability Jeremy Rubin
6 messages
28 Oct 2015
Compatibility requirements for hard or soft forks Gavin Andresen
13 messages
10 Dec 2015
Segregated Witness features wish list Johnson Lau
13 messages
19 Dec 2015
Segregated witness softfork with moderate adoption has very small block size effect Johnson Lau
7 messages
21 Dec 2015
A new payment address format for segregated witness or not? Johnson Lau
2 messages
23 Dec 2015
Segregated Witness BIPs Eric Lombrozo
4 messages

2016 5 threads

13 May 2016
Bip44 extension for P2SH/P2WSH/... Daniel Weigl
20 messages
26 May 2016
BIP Number Request: Open Asset Nicolas Dorier
10 messages
14 Jun 2016
RFC for BIP: Derivation scheme for P2WPKH-nested-in-P2SH based accounts Daniel Weigl
7 messages
16 Aug 2016
New BIP: Dealing with OP_IF and OP_NOTIF malleability in P2WSH Johnson Lau
21 messages
29 Nov 2016
BIP idea: Standardised p2sh bitcoin addresses requiring an arbitrary and/or combination of keys Erland Lewin
2 messages

2017 23 threads

23 Feb 2017
SHA1 collisions make Git vulnerable to attakcs by third-parties, not just repo maintainers Peter Todd
32 messages
12 Mar 2017
Flag day activation of segwit shaolinfry
10 messages
20 Mar 2017
A BIP proposal for segwit addresses Pieter Wuille
10 messages
23 May 2017
A BIP proposal for conveniently referring to confirmed transactions Велеслав
4 messages
1 Jun 2017
Lightning invoice/payment format draft Rusty Russell
4 messages
8 Jul 2017
Standard address format for timelocked funds ZmnSCPxj
3 messages
9 Aug 2017
Structure for Trustless Hybrid Bitcoin Wallets Using P2SH for Recovery Options Colin Lacina
3 messages
28 Aug 2017
P2WPKH Scripts, P2PKH Addresses, and Uncompressed Public Keys Alex Nagy
6 messages
30 Aug 2017
BIP49 Derivation scheme changes shiva sitamraju
7 messages
5 Sep 2017
Proposal: bip32 version bytes for segwit scripts Thomas Voegtlin
10 messages
6 Sep 2017
Proposal: Extended serialization format for BIP-32 wallets Pavol Rusnak
15 messages
15 Sep 2017
proposal: extend WIF format for segwit Thomas Voegtlin
7 messages
20 Sep 2017
An explanation and justification of the tail-call and MBV approach to MAST Mark F
2 messages
23 Sep 2017
Sidechains: Mainstake ZmnSCPxj
3 messages
27 Sep 2017
Address expiration times should be added to BIP-173 Peter Todd
35 messages
30 Oct 2017
Visually Differentiable - Bitcoin Addresses shiva sitamraju
9 messages
5 Nov 2017
Generalised Replay Protection for Future Hard Forks Mats Jerratsch
12 messages
15 Nov 2017
Making OP_CODESEPARATOR and FindAndDelete in non-segwit scripts non-standard Johnson Lau
6 messages
5 Dec 2017
BIP-21 amendment proposal: -no125 Sjors Provoost
8 messages
8 Dec 2017
Sign / Verify message against SegWit P2SH addresses. Dan Bryant
8 messages
18 Dec 2017
Clarification about SegWit transaction size and bech32 Alberto De Luigi
5 messages
19 Dec 2017
Clarification about SegWit transaction size and bech32 Alberto De Luigi
1 message
25 Dec 2017
Bravo Charlie One: Branding Bech32 nullius
1 message

2018 16 threads

4 Jan 2018
Bech32 and P2SH² Luke Dashjr
4 messages
5 Jan 2018
BIP 39: Add language identifier strings for wordlists nullius
18 messages
9 Jan 2018
BIP 117 Feedback Rusty Russell
10 messages
19 Jan 2018
P2SH and Version 0 Segwit Script enforcement from genesis Suhas Daftuar
1 message
23 Jan 2018
BIP16 enforcement change in V0.16 John Newbery
1 message
28 Feb 2018
Simple lock/unlock mechanism Karl-Johan Alm
6 messages
13 Mar 2018
Sign / Verify message against SegWit P2SH and Bech32 addresses LORD HIS EXCELLENCY JAMES HRMH
1 message
25 Apr 2018
Multi-signature and multi-coin HD wallet in one BIP32 derivation path (new BIP) Paul Brown
6 messages
29 May 2018
New serialization/encoding format for key material Jonas Schnelli
11 messages
31 May 2018
SIGHASH2 for version 1 witness programme Johnson Lau
10 messages
24 Jul 2018
URI scheme with optional bech32 address Federico Tenga
3 messages
31 Jul 2018
bitcoin-transactions Aymeric Vitte
4 messages
17 Oct 2018
Request: OP_CHECKTXOUTSCRIPTHASHVERIFY kim juan
4 messages
6 Nov 2018
BIP- & SLIP-0039 -- better multi-language support Weiji Guo
8 messages
3 Dec 2018
Proposal for Palindromic (Reversible) Mnemonics Steven Hatzakis
5 messages
21 Dec 2018
BIP39 seeds Aymeric Vitte
14 messages

2019 12 threads

31 Jan 2019
Predicate Tree in ZkVM: a variant of Taproot/G'root Oleg Andreev OOO
2 messages
17 Feb 2019
BIP proposal - Signatures of Messages using Bitcoin Private Keys Christopher Gilliard
7 messages
22 Mar 2019
New BIP - v2 peer-to-peer message transport protocol (former BIP151) Jonas Schnelli
5 messages
19 Apr 2019
Using the same public keys, the p2sh returned by `addmultisigaddress` differs from the one returned by `createmultisigaddress` Michele Federici
2 messages
27 Apr 2019
IsStandard Aymeric Vitte
12 messages
6 May 2019
Taproot proposal Pieter Wuille
24 messages
12 Jul 2019
Discover and move your coins by yourself Aymeric Vitte
3 messages
5 Oct 2019
Human readable format for private keys JW Weatherman
2 messages
7 Nov 2019
Bech32 weakness and impact on bip-taproot addresses Pieter Wuille
16 messages
5 Dec 2019
easypaysy - A layer-two protocol to send payments without addresses Jose Femenías Cañuelo
6 messages
9 Dec 2019
Analysis of Bech32 swap/insert/delete detection and next steps Pieter Wuille
3 messages
24 Dec 2019
Base64-encoded descriptors Chris Belcher
6 messages

2020 3 threads

9 Feb 2020
Taproot (and graftroot) complexity Bryan Bishop
16 messages
26 Feb 2020
Removing Single Point of Failure with Seed Phrase Storage Contact Team
6 messages
8 Oct 2020
Progress on bech32 for future Segwit Versions (BIP-173) Rusty Russell
24 messages

2021 9 threads

5 Jan 2021
Bech32m BIP: new checksum, and usage for segwit address Pieter Wuille
8 messages
16 Jan 2021
PayJoin adoption Chris Belcher
5 messages
25 Feb 2021
Exploring alternative activation mechanisms: decreasing threshold Gregorio Guidi
7 messages
14 Mar 2021
Signature and Script Independent Hierarchy for Deterministic Wallets. Robert Spigler
9 messages
20 Apr 2021
Motivating Address type for OP_RETURN Jeremy Rubin
7 messages
29 Jun 2021
BIP Proposals for Output Script Descriptors Andrew Chow
12 messages
16 Aug 2021
Human readable checksum (verification code) to avoid errors on BTC public addresses ts
14 messages
31 Aug 2021
Proposal for a few IANA mime-types related to Bitcoin Peter (Coinkite Inc)
7 messages
9 Oct 2021
Taproot testnet wallet Andreas Schildbach
5 messages

2022 6 threads

5 Apr 2022
Taro: A Taproot Asset Representation Overlay Olaoluwa Osuntokun
18 messages
7 Jul 2022
No Order Mnemonic Anton Shevchenko
14 messages
20 Jul 2022
Trying all address types in message signing verification (BIP) Ali Sherief
7 messages
9 Aug 2022
Regarding BIP322 edge cases Ali Sherief
7 messages
14 Aug 2022
A method for BIP322 signing delegation Ali Sherief
4 messages
29 Sep 2022
Third version of Silent Payment implementation woltx
3 messages

2023 6 threads

31 Jan 2023
Reference example bech32m address for future segwit versions David A. Harding
5 messages
16 Feb 2023
Codex32 Russell O'Connor
15 messages
2 May 2023
Formosa --- proposed improvement upon BIP39 yurisvb
4 messages
4 Aug 2023
BIP-352 Silent Payments addresses should have an expiration time Peter Todd
9 messages
31 Aug 2023
Compressed Bitcoin Transactions Tom Briar
16 messages
20 Oct 2023
Examining ScriptPubkeys in Bitcoin Script Rusty Russell
8 messages

2024 3 threads

10 Jan 2024
Introducing a version field to BIP39 mnemonic phrases Leslie
5 messages
12 May 2024
Penlock, a paper-computer for secret-splitting BIP39 seed phrases Rama Gan
11 messages
17 Oct 2024
Proposal for Quantum-Resistant Cryptography in Bitcoin - BIP Submission Agustin Cruz
3 messages

2025 9 threads

15 Feb 2025
Announcing Bitcoin BOSD: Standardized Withdrawal Output Specification for L2s Jose Storopoli
3 messages
19 Feb 2025
P2QRH / BIP-360 Update Hunter Beast
19 messages
23 May 2025
BIP39 Extension for Manual Seed Phrase Creation Eric Kvam
9 messages
8 Jun 2025
OP_CAT Enables Winternitz Signatures conduition
8 messages
14 Jul 2025
Compressed Base58 Encoding for BIP-39 Mnemonics with Multisig Extensions Zach
2 messages
18 Jul 2025
Human meaningful witness versioning Ethan Heilman
9 messages
4 Aug 2025
No burn, Quantum Migration Proposal, Quantum Secure Asset Verification & Escrow (QSAVE) James T
9 messages
31 Aug 2025
Add BIP-0093 (Codex32) as application to BIP-0085 Ben Westgate
7 messages
3 Oct 2025
Add importprivkeys RPC blocktraveler
4 messages

2026 1 thread

3 Jun 2026
Aligning privacy incentives in P2MR conduition
20 messages