Nodes and consensus
Bitcoin Core
The reference Bitcoin client.
Green — compatible use if you keep the notices
- SPDX or status
- MIT
- Confidence
- high
- Maintainer
- Bitcoin Core contributors
- Runtime
- Bitcoin node
- Repository
- bitcoin/bitcoin
GitHub licence API reported MIT on 2026-10-01. Blockchain Lab has not audited this repository. A licence check is not a vulnerability scan, a dependency review, or a security audit.
Keep the MIT notice if you distribute the software.
Reuse status
Research available. Reuse pending.
A permissive licence file was recorded. The reuse gates are unmet, so nothing from the repository is exported.
- Source class
- S3 candidate
- Commit
- Not pinned
- Source-derived demo
- Held
Available
- E0: Metadata
- E1: Research report
- E2: Citation bundle
- E3: Pattern blueprint
- E4: Test plan
- E5: Original scaffold
Not available
- E6: Source-derived demo pack — held
- E7: Full source bundle — held
- E8: Dataset export — held
- E9: Model-training pack — held
- E10: Production candidate pack — held
Bitcoin Core has a permissive file on record. That is not a cleared export. Non-commercial or demo use does not remove the licence duty. When in doubt, link — do not copy.
Use
- Running a Bitcoin full node as a source of chain data or as your own verifier
Do not use for
- Forking consensus into a new coin as a startup template
- A payments product by itself
Risks
- Consensus code is not an application library.
- A modified client that diverges is a different network.
Reviews required
- Do not ship a consensus change as a product feature
No source code is reproduced on this page. No commit SHA is published, because this release did not pin one.