| name | bitvm |
| description | BitVM2—Groth16 SNARK verifier on Bitcoin, bridge CLI, chunk API, header chain and final SPV. |
| metadata | {"author":"hairy","version":"2026.2.24","source":"Generated from https://github.com/BitVM/BitVM, scripts at https://github.com/antfu/skills"} |
Skill based on BitVM (BitVM/BitVM), generated from sources/bitvm. Doc path: README.md, docs/chunk_instructions.md, DEMO_INSTRUCTIONS.md, prover/README.md, header-chain/README.md, final-spv/README.md, regtest/README.md.
BitVM implements the BitVM2 optimistic paradigm: a Groth16 SNARK verifier executable on Bitcoin without soft forks, plus a trust-minimized bridge. Use for scripting u32/u4 arithmetic, hashes (SHA256, BLAKE3), bigint, BN254, chunked Groth16 verification, and peg-in/peg-out flows. Do not use in production.
Core References
| Topic | Description | Reference |
|---|
| Overview | BitVM2 paradigm, SNARK verifier, component map, capabilities | core-overview |
| Components | u32, u4, hash, bigint, BN254, Groth16, chunk, signatures, bridge | core-components |
Features
| Topic | Description | Reference |
|---|
| Bridge CLI | Keys, addresses, UTXOs, peg-in/peg-out, MuSig2, broadcast, env and config | features-bridge-cli |
| Chunk API | Tapscripts, disprove logic, DataType/ElementType, hashing, tests | features-chunk-api |
| Header chain | Risc0 header chain circuit and prover binary, data and proving | features-header-chain |
| Final SPV | Header verification, tx inclusion proof, 32-byte Blake3 digest | features-final-spv |
Best Practices
| Topic | Description | Reference |
|---|
| Demo flows | Funding UTXOs, happy peg-out, successful disprove, environment setup | best-practices-demo-flows |
