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rust-bitcoin

Rust library for Bitcoin data structures, serialization, consensus encoding, and scripts.

BitcoinCryptographic librariesNormal
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Repository coverage

2297 commits in the local evidence base

Every captured commit receives deterministic security triage and a separate communication-quality score. Security candidates and broader second-pass signals receive full-patch Ollama analysis.

527security candidates507second-pass queue2197AI analyses
143commits · 30 days
279commits · 60 days
1155commits · 180 days
2045commits · 365 days
Backfill bands
Aug 5 → Feb 6787 seen32 candidatesComplete
Feb 6 → Jun 6878 seen53 candidatesComplete
Jun 6 → Jul 6211 seen15 candidatesComplete
Jul 6 → Aug 5184 seen2 candidatesComplete
Commit communication

Does the history explain itself?

Message quality measures whether a commit identifies its scope, purpose, rationale, testing, and supporting references. It does not change the security-severity score.

66/100 average clarity
496Strong · 80–100
1083Adequate · 60–79
567Thin · 40–59
151Opaque · 0–39
20security candidates with opaque commit messaging
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Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
Mitchell Bagot649193645068
Andrew Poelstra21775149089
Tobin C. Harding41566410063
jrakibi944994068
Nick Johnson19121190060
Jamil Lambert, PhD11919116061
satsfy (Renato Britto)381527066
Fmt Bot331431045
Trevor Arjeski111111069
Shing Him Ng31731056
Ismail Daif22622050
Martin Habovstiak29527068
Analysis record

Published AI watches

Last scanned 44 minutes ago

Informational 19 AI analysisMessage 100 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6922: Use `try_fold` instead of `fold` in `Sum` impl

This is a code-quality and performance improvement, not a security fix. It changes how the library adds up lists of Bitcoin amounts so that it stops early once an overflow is detected, rather than continuing to process the rest of the list…

No security-relevant signal in commit message or diffRefactor preserves overflow-checking behavior (short-circuits instead of continuing)New API method `NumOpResult::from_result` is a pure inverse of existing `into_result`
86e4d5daby Andrew Poelstra+60−562 files
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Moderate 52 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6893: units: Reject malformed amount strings

This update fixes a bug in how the library reads Bitcoin amount strings like '1.5 BTC'. Previously, certain malformed inputs such as '.', '._', '1_', '1_.0', and '1._0' were incorrectly accepted and treated as valid amounts (often zero), i…

Input validation bypass in amount parserMalformed strings silently parsed as zero or ordinary amountsUnderscore separator placement not enforced
fcb14622by Andrew Poelstra+88−343 files
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Low 48 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6921: units: fix div_by_fee_rate_ceil precision

This commit fixes a rounding bug in how the rust-bitcoin library calculates the minimum transaction weight needed to pay a given fee at a given fee rate. The old code rounded the fee rate up too early, which could produce a weight slightly…

Incorrect fee-weight calculation due to premature integer roundingPotential transaction fee shortfall when using div_by_fee_rate_ceilOverflow protection added for Amount::MAX * 4_000_000 intermediate value
b31212e0by Andrew Poelstra+38−82 files
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Informational 15 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6898: Release tracking PR: `consensus-encoding 1.3.0`

This is a routine release-management commit that bumps the version number of the `bitcoin-consensus-encoding` crate from 1.2.0 to 1.3.0 and updates lock files accordingly. It contains no code changes that fix or introduce a security issue.…

0cfc7908by Andrew Poelstra+37−349 files
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Informational 15 AI analysisMessage 96 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6909: build(deps): bump actions/labeler from 6.2.0 to 7.0.0

This commit updates a GitHub Actions automation tool (actions/labeler) used to automatically tag pull requests with labels. It is a routine dependency version bump from 6.2.0 to 7.0.0, with no indication of a security fix or vulnerability.…

4ed7c068by Andrew Poelstra+1−11 file
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Informational 15 AI analysisMessage 96 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6910: build(deps): bump actions/checkout from 7.0.0 to 7.0.1

This commit is a routine update to the GitHub Actions checkout tool used by the project's automated workflows. It only changes version numbers in configuration files and does not alter the actual Bitcoin library code that users run. There …

328c4ae9by Andrew Poelstra+37−3717 files
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Informational 15 AI analysisMessage 100 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6911: build(deps): bump astral-sh/setup-uv from 8.3.2 to 9.0.0

This commit updates a GitHub Actions helper used to install a Python tool called uv, which runs the zizmor security scanner. The change only bumps the pinned version of the helper from 8.3.2 to 9.0.0. The new version's release notes mentio…

No security-relevant signals in commit or upstream release notesDependency bump in CI only, not in library codeNo CVE or advisory referenced
67600795by Andrew Poelstra+2−22 files
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Informational 15 AI analysisMessage 96 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6912: build(deps): bump github/codeql-action/upload-sarif from 4.37.0 to 4.37.3

This is a routine Dependabot update that changes the pinned version of GitHub's official CodeQL upload-sarif action from 4.37.0 to 4.37.3 in a single CI workflow. The action only uploads static analysis results to GitHub; it does not touch…

b51cec63by Andrew Poelstra+1−11 file
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Informational 15 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6913: build(deps): bump dtolnay/rust-toolchain from 6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 to 02cb101ec7c40f2c49e1d9714d64511d8e1b74de

This is a routine update to a GitHub Actions helper used to install Rust during automated testing. It only changes the pinned version of the dtolnay/rust-toolchain action in workflow files. There is no change to the actual rust-bitcoin lib…

90330d15by Andrew Poelstra+8−84 files
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Informational 20 AI analysisMessage 100 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6906: consensus_encoding, primitives: expose exact encoding size for block and transaction

This commit adds a way to ask, in advance, exactly how many bytes a Bitcoin block or transaction will take when serialized. It is a feature addition for the library's encoding system, not a fix for a vulnerability. There is no indication i…

No security-relevant signals in commit message or diffFeature addition: expose exact encoded sizeNo mention of vulnerability, CVE, bug bounty, or security report
1a365d53by Andrew Poelstra+129−1068 files
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Informational 15 AI analysisMessage 88 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

build(deps): bump dtolnay/rust-toolchain

This is a routine update by Dependabot that changes which version of a popular GitHub Action (dtolnay/rust-toolchain) is used to install Rust in automated CI workflows. The commit only updates pinned commit hashes in workflow files; it doe…

a31e0b0eby dependabot[bot]+8−84 files
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Informational 15 AI analysisMessage 93 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

build(deps): bump github/codeql-action/upload-sarif

This is a routine patch-version update of a GitHub-maintained action used only to upload static-analysis results (SARIF files) from a scheduled CI job. The change does not touch any project source code, cryptographic logic, or user-facing …

2cac6e38by dependabot[bot]+1−11 file
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Informational 15 AI analysisMessage 93 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

build(deps): bump astral-sh/setup-uv from 8.3.2 to 9.0.0

This is a routine automated update by Dependabot that changes the pinned version of a GitHub Action used to install a Python tool called 'uv' in two workflow files. The new version is a major release of the setup-uv action itself, but the …

7d7e7269by dependabot[bot]+2−22 files
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Informational 21 AI analysisMessage 100 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6894: Harden `Copy` policy and apply to all pre-1.0 crates

This commit removes the automatic `Copy` trait from several public error types in the rust-bitcoin library and updates the project's written policy to discourage `Copy` on error types. `Copy` is a Rust trait that lets values be duplicated …

API hardening: removes `Copy` from public error types to preserve future flexibilityPolicy update: docs/policy.md now explicitly discourages `Copy` on error typesNo vulnerability fix: change is defensive/preventive, not reactive to a disclosed issue
457cb9b5by Andrew Poelstra+14−146 files
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Informational 18 AI analysisMessage 96 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6787: Move `from_script` to `Address` and drop `AddressExt`

This change is a routine code cleanup, not a security fix. It moves a method that converts Bitcoin output scripts into human-readable addresses from a temporary 'extension trait' directly onto the main Address type. The actual conversion l…

ed42dabdby Andrew Poelstra+38−414 files
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Low 35 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6061: Units improvements

This is a routine code-quality and API-expansion pull request for the rust-bitcoin library's 'units' crate. It widens some fee-rate constructors from 32-bit to 64-bit inputs, renames the old 32-bit versions, improves serde error messages, …

API surface change: new u64 fee-rate constructors return NumOpResult to prevent silent overflowRenaming of existing u32 constructors to *_u32 may break downstream callers at compile time (breaking API change)Removal of artificial restriction in from_per_vb allows larger valid inputs
f9460859by Andrew Poelstra+266−12211 files
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Low 49 AI analysisMessage 96 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6862: units: Preserve error in NumOpResult add and sub

This commit fixes a bug in how the library handles math errors. Previously, if you added or subtracted two values and one of them already had an error (for example, dividing by zero), the library would silently replace that original error …

Error-state information loss in arithmetic wrapper typeIncorrect error propagation could mask prior failures such as division by zeroDefensive correctness fix in numeric operation result handling
5324e59aby Andrew Poelstra+26−41 file
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Low 37 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6896: Fix `cargo audit` findings

This is a routine dependency-maintenance merge that swaps out old, unmaintained helper libraries for newer, patched versions in the project's example embedded programs and benchmark harness. The changes are driven by automated security sca…

cargo audit advisory remediationdependency upgrade for known-vulnerable crate (rand 0.7 / jobserver)dependency upgrade for known-vulnerable crate (crossbeam-epoch)
5f5f666dby Andrew Poelstra+51−1849 files
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Low 37 AI analysisMessage 91 · Strong
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

Merge rust-bitcoin/rust-bitcoin#6897: consensus_encoding: fix overcounting bug in the composite encoders exact size len calculation

This commit fixes a counting bug in a Rust Bitcoin library. The library has combined encoders that bundle multiple pieces of data together. A method called len() is supposed to report how many bytes are left to encode, but it was incorrect…

Violation of documented API contract (ExactSizeEncoder::len)Potential incorrect buffer-size or progress decisions by downstream callersComposite encoder state not fully isolated in size reporting before fix
22bbc326by Andrew Poelstra+19−13 files
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Low 37 AI analysisMessage 73 · Adequate
RB Rust Bitcoinrust-bitcoin BitcoinCryptographic libraries

consensus_encoding: fix bug in the composite encoder's exact size

This commit fixes a bookkeeping bug in a Rust Bitcoin library's composite encoder. The encoder is a tool that combines multiple pieces of data into a single byte stream, and it has a method that is supposed to report how many bytes are lef…

Incorrect implementation of a documented size/length contractPotential for callers to over-allocate buffers or miscompute transaction/witness sizesComposite encoder used in consensus-critical serialization paths
914365b4by Nick Johnson+19−13 files
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Security candidateUse single level of path for internal macrosby Tobin C. Harding · 2e28fddb · Aug 6, 2025 · 7 filesMessage 68 · AdequateInformational 15Details
Commit message · Tobin C. Harding

Use single level of path for internal macros

As we just did for consensus encoding macros use exactly one level of
path when calling internal macros.

This is just stylistic and aims at improving readability by making it
explicit that these macros are not being called across a crate boundary
but done so tersely.

68/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
Why it was queued
cryptography-sensitive pathsigning or wallet path
AI analysis · Informational 15/100

This commit is a purely stylistic cleanup inside the rust-bitcoin library. It changes how internal helper macros are referenced from a two-level path like `crate::internal_macros::macro_name!` to a single-level path like `internal_macros::macro_name!` after importing the module once. The commit message explicitly says this is for readability only and does not change any behavior or fix any security issue.

Security candidatePluralize transaction fieldsby Tobin C. Harding · 66c4ea20 · Aug 6, 2025 · 24 filesMessage 58 · ThinInformational 20Details
Commit message · Tobin C. Harding

Pluralize transaction fields

I'm feeling brave, this is stylistic but will be mildly annoying for
downstream. On the other hand we either do it in the 1.0 or never.

58/100 · ThinMessage clarity
✓ Descriptive subject✓ Provides detailed explanatory context
Why it was queued
cryptography-sensitive pathsigning or wallet path
AI analysis · Informational 20/100

This commit is a simple renaming of two fields in the Transaction struct from singular 'input'/'output' to plural 'inputs'/'outputs'. It is a stylistic/API-breaking change, not a security fix or vulnerability. The diff updates all internal usages, examples, tests, and fuzz targets consistently. There is one stray file 'bitcoin/src/ex' containing the letter 't' that appears to be an accidental addition, but it is harmless.