Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Banking
· snapshot 2026-08-11
OCC. 2026-08-11. Full text. Licence: US government or court record / US patent (public domain).
Excerpt: OCC Commends FDIC Reform, Advances Priority to Reinvigorate De Novo Chartering | OCC Skip to main content An official website of the United States government Careers Quick Access Most Requested Bank Secrecy Act (BSA) Contact Us Community Reinvestment Act (CRA) Comptroller's Handbook Corporate Applications Search Enforcement Action Search Financial Institution Lists Newsroom Third-Party Relationships: Interagency Guidance on Risk Management More OCC Websites BankNet.gov Find resources for bankers. HelpWithMyBank.gov Get answers to banking questions. Search More Search Tools…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Banking
· snapshot 2026-08-19
OCC. 2026-08-19. Full text. Licence: US government or court record / US patent (public domain).
Excerpt: Comptroller Gould Discusses Digital Asset Innovation, GENIUS Next Steps | OCC Skip to main content An official website of the United States government Careers Quick Access Most Requested Bank Secrecy Act (BSA) Contact Us Community Reinvestment Act (CRA) Comptroller's Handbook Corporate Applications Search Enforcement Action Search Financial Institution Lists Newsroom Third-Party Relationships: Interagency Guidance on Risk Management More OCC Websites BankNet.gov Find resources for bankers. HelpWithMyBank.gov Get answers to banking questions. Search More Search Tools Finan…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Banking
· snapshot 2026-02-25
OCC. 2026-02-25. Full text. Licence: US government or court record / US patent (public domain).
Excerpt: OCC Requests Comments on Proposal to Implement GENIUS Act | OCC Skip to main content An official website of the United States government Careers Quick Access Most Requested Bank Secrecy Act (BSA) Contact Us Community Reinvestment Act (CRA) Comptroller's Handbook Corporate Applications Search Enforcement Action Search Financial Institution Lists Newsroom Third-Party Relationships: Interagency Guidance on Risk Management More OCC Websites BankNet.gov Find resources for bankers. HelpWithMyBank.gov Get answers to banking questions. Search More Search Tools Financial Instituti…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Banking
· snapshot 2026-10-09
Wyoming Division of Banking. page undated; retrieved 2026-10-09. Full text. Licence: US government or court record / US patent (public domain).
Excerpt: Division of Banking - Special Purpose Depository Institutions Search this site Embedded Files Skip to main content Skip to navigation Division of Banking Home About Us Staff Contact Us Banks and Trust Companies Application Forms Application Status ATM Operation Bank Director Forms Deposits Summary Fee Schedule Industry Links Statutes and Regulations Regulated Financial Institutions Quarterly Abstracts Proposed Rules Special Purpose Depository Institutions SPDI Call Report Financial Technology Sandbox Consumer Lending License and Registration Consumer Resources Laws…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2026-10-09
Bitcoin Improvement Proposals that the technology note ( notes/2026-10-09-technology.md ) relies on, saved as full copies from the official repository.
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2025-01-09
Murch. 2025-01-09. Full text. Licence: BSD-2-Clause.
Excerpt: ``` BIP: 3 Title: Updated BIP Process Authors: Murch <[email protected]> Status: Deployed Type: Process Assigned: 2025-01-09 License: BSD-2-Clause Discussion: https://github.com/murchandamus/bips/pull/2 https://gnusha.org/pi/bitcoindev/[email protected]/#t Version: 1.4.0 Requires: 123 Replaces: 2 ``` ## Abstract This _Bitcoin Improvement Proposal (BIP)_ provides information about the preparation of BIPs and policies relating to the publication of BIPs. It replaces [BIP 2](bip-0002.mediawiki) with a streamlined proce…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2017-02-01
Shaolin Fry; Luke Dashjr. 2017-02-01. Full text. Licence: BSD-3-Clause OR CC0-1.0.
Excerpt: <pre> BIP: 8 Title: Version bits with lock-in by height Authors: Shaolin Fry <[email protected]> Luke Dashjr <[email protected]> Status: Complete Type: Informational Assigned: 2017-02-01 License: BSD-3-Clause OR CC0-1.0 Version: 1.0.0 </pre> ==Abstract== This document specifies an alternative to [[bip-0009.mediawiki|BIP9]] that corrects for a number of perceived mistakes. Block heights are used for start and timeout rather than POSIX timestamps. It additionally introduces an activation parameter that can guarantee activation of backward-compatible changes…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2015-10-04
Pieter Wuille; Peter Todd; Greg Maxwell; Rusty Russell. 2015-10-04. Full text. Licence: PD.
Excerpt: <pre> BIP: 9 Title: Version bits with timeout and delay Authors: Pieter Wuille <[email protected]> Peter Todd <[email protected]> Greg Maxwell <[email protected]> Rusty Russell <[email protected]> Status: Deployed Type: Informational Assigned: 2015-10-04 License: PD </pre> ==Abstract== This document specifies a proposed change to the semantics of the 'version' field in Bitcoin blocks, allowing multiple backward-compatible changes (further called "soft forks") to be deployed in parallel. It relies on interpreting the version field as a bit…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2012-02-22
Pieter Wuille. 2012-02-22. Full text. Licence: BSD-2-Clause.
Excerpt: <pre> BIP: 30 Layer: Consensus (soft fork) Title: Duplicate transactions Authors: Pieter Wuille <[email protected]> Status: Deployed Type: Specification Assigned: 2012-02-22 License: BSD-2-Clause </pre> ==Abstract== This document gives a specification for dealing with duplicate transactions in the block chain, in an attempt to solve certain problems the reference implementation has with them. ==Copyright== This BIP is licensed under the 2-clause BSD license. ==Motivation== So far, the Bitcoin reference implementation always assumed duplicate transactions (transactions…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2012-02-11
Pieter Wuille. 2012-02-11. Full text. Licence: BSD-2-Clause.
Excerpt: RECENT CHANGES: * (16 Apr 2013) Added private derivation for i ≥ 0x80000000 (less risk of parent private key leakage) * (30 Apr 2013) Switched from multiplication by I<sub>L</sub> to addition of I<sub>L</sub> (faster, easier implementation) * (25 May 2013) Added test vectors * (15 Jan 2014) Rename keys with index ≥ 0x80000000 to hardened keys, and add explicit conversion functions. * (24 Feb 2017) Added test vectors for hardened derivation with leading zeros * (4 Nov 2020) Added new test vectors for hardened derivation with leading zeros <pre> BIP: 32 Layer: Applications Title: Hierarch…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2013-09-10
Marek Palatinus; Pavol Rusnak; Aaron Voisine; Sean Bowe. 2013-09-10. Full text. Licence: MIT.
Excerpt: <pre> BIP: 39 Layer: Applications Title: Mnemonic code for generating deterministic keys Authors: Marek Palatinus <[email protected]> Pavol Rusnak <[email protected]> Aaron Voisine <[email protected]> Sean Bowe <[email protected]> Status: Deployed Type: Specification Assigned: 2013-09-10 License: MIT </pre> ==Abstract== This BIP describes the implementation of a mnemonic code or mnemonic sentence -- a group of easy to remember words -- for the generation of deterministic wallets. It consists of two parts: generating the mnemonic a…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
Full text. Licence: US government or court record / US patent (public domain).
Excerpt: abandon ability able about above absent absorb abstract absurd abuse access accident account accuse achieve acid acoustic acquire across act action actor actress actual adapt add addict address adjust admit adult advance advice aerobic affair afford afraid again age agent agree ahead aim air airport aisle alarm album alcohol alert alien all alley allow almost alone alpha already also alter always amateur amazing among amount amused analyst anchor ancient anger angle angry animal ankle announce annual another answer antenna antique anxiety any apart apology appear apple approve april arch arcti…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2014-04-01
Pieter Wuille. 2014-04-01. Full text. Licence: PD.
Excerpt: <pre> BIP: 42 Layer: Consensus (soft fork) Title: A finite monetary supply for Bitcoin Authors: Pieter Wuille <[email protected]> Comments-Summary: Unanimously Recommended for implementation Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0042 Status: Deployed Type: Specification Assigned: 2014-04-01 License: PD </pre> ==Abstract== Although it is widely believed that Satoshi was an inflation-hating goldbug he never said this, and in fact programmed Bitcoin's money supply to grow indefinitely, forever. He modeled the monetary supply as 4 gold mines be…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2016-05-19
Daniel Weigl. 2016-05-19. Full text. Licence: PD.
Excerpt: <pre> BIP: 49 Layer: Applications Title: Derivation scheme for P2WPKH-nested-in-P2SH based accounts Authors: Daniel Weigl <[email protected]> Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0049 Status: Deployed Type: Specification Assigned: 2016-05-19 License: PD </pre> ==Abstract== This BIP defines the derivation scheme for HD wallets using the P2WPKH-nested-in-P2SH ([[bip-0141.mediawiki|BIP 141]]) serialization format for segregated witness transactions. ==Motivation== With the usage of P2WPKH-nested-in-P2SH ([[bip-…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2013-03-20
Gavin Andresen. 2013-03-20. Full text. Licence: PD.
Excerpt: <pre> BIP: 50 Title: March 2013 Chain Fork Post-Mortem Authors: Gavin Andresen <[email protected]> Status: Deployed Type: Informational Assigned: 2013-03-20 License: PD </pre> ==What went wrong== A block that had a larger number of total transaction inputs than previously seen was mined and broadcasted. Bitcoin 0.8 nodes were able to handle this, but some pre-0.8 Bitcoin nodes rejected it, causing an unexpected fork of the blockchain. The pre-0.8-incompatible chain (from here on, the 0.8 chain) at that point had around 60% of the mining hash power ensuring the split did no…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2025-04-11
Antoine Poinsot; Matt Corallo. 2025-04-11. Full text. Licence: CC0-1.0.
Excerpt: ``` BIP: 54 Layer: Consensus (soft fork) Title: Consensus Cleanup Authors: Antoine Poinsot <[email protected]> Matt Corallo <[email protected]> Status: Complete Type: Specification Assigned: 2025-04-11 License: CC0-1.0 ``` ## Abstract This document proposes new consensus rules in order to fix the timewarp attack, reduce the worst case block validation time, prevent Merkle tree weaknesses, and avoid duplicate transactions without [bip-0030][BIP30] validation. ## Motivation This proposal addresses a number of long-standing vulnerabilities and weaknesses in the Bitco…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2014-10-01
Peter Todd. 2014-10-01. Full text. Licence: PD.
Excerpt: <pre> BIP: 65 Layer: Consensus (soft fork) Title: OP_CHECKLOCKTIMEVERIFY Authors: Peter Todd <[email protected]> Status: Deployed Type: Specification Assigned: 2014-10-01 License: PD </pre> ==Abstract== This BIP describes a new opcode (OP_CHECKLOCKTIMEVERIFY) for the Bitcoin scripting system that allows a transaction output to be made unspendable until some point in the future. ==Summary== CHECKLOCKTIMEVERIFY redefines the existing NOP2 opcode. When executed, if any of the following conditions are true, the script interpreter will terminate with an error: * the stack is e…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2015-01-10
Pieter Wuille. 2015-01-10. Full text. Licence: BSD-2-Clause.
Excerpt: <pre> BIP: 66 Layer: Consensus (soft fork) Title: Strict DER signatures Authors: Pieter Wuille <[email protected]> Status: Deployed Type: Specification Assigned: 2015-01-10 License: BSD-2-Clause </pre> ==Abstract== This document specifies proposed changes to the Bitcoin transaction validity rules to restrict signatures to strict DER encoding. ==Copyright== This BIP is licensed under the 2-clause BSD license. ==Motivation== Bitcoin's reference implementation currently relies on OpenSSL for signature validation, which means it is implicitly defining Bitcoin's block va…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2017-12-28
Pavol Rusnak. 2017-12-28. Full text. Licence: CC0-1.0.
Excerpt: <pre> BIP: 84 Layer: Applications Title: Derivation scheme for P2WPKH based accounts Authors: Pavol Rusnak <[email protected]> Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0084 Status: Deployed Type: Specification Assigned: 2017-12-28 License: CC0-1.0 </pre> ==Abstract== This BIP defines the derivation scheme for HD wallets using the P2WPKH ([[bip-0173.mediawiki|BIP 173]]) serialization format for segregated witness transactions. ==Motivation== With the usage of P2WPKH transactions it is necessary to have a commo…
Bitcoin Research — Law, Regulation, Markets & Origins (2026)
· Bips
· snapshot 2021-06-22
Ava Chow. 2021-06-22. Full text. Licence: BSD-2-Clause.
Excerpt: <pre> BIP: 86 Layer: Applications Title: Key Derivation for Single Key P2TR Outputs Authors: Ava Chow <[email protected]> Status: Deployed Type: Specification Assigned: 2021-06-22 License: BSD-2-Clause </pre> ==Abstract== This document suggests a derivation scheme for HD wallets whose keys are involved in single key P2TR ([[bip-0341.mediawiki|BIP 341]]) outputs as the Taproot internal key. ===Copyright=== This BIP is licensed under the 2-clause BSD license. ==Motivation== With the usage of single key P2TR transactions, it is useful to have a common derivation scheme so that…