Cryptography · Maintained 2026

MuSig2

MuSig2 is an interactive multisignature protocol that lets multiple signers jointly produce one BIP340-compatible Schnorr signature for an aggregated public key.

Context

Why it matters

MuSig2 is an interactive multisignature protocol that lets multiple signers jointly produce one BIP340-compatible Schnorr signature for an aggregated public key.

Canonical knowledge

What California Bitcoin maintains

MuSig2 is an interactive multisignature protocol that lets multiple signers jointly produce one BIP340-compatible Schnorr signature for an aggregated public key.

Primary and technical sources

Evidence before assertion

BIP327: MuSig2 for BIP340-compatible Multi-Signatures

Bitcoin BIPs

Tier 1 · primary BIP340: Schnorr Signatures for secp256k1

Bitcoin BIPs

Tier 1 · primary

Related concepts

Continue through the knowledge graph

Schnorr signatures Multisignature Taproot

Machine accessAgent-ready

https://californiabitcoin.org/api/agent/v1/topic/musig2https://californiabitcoin.org/api/agent/v1/search?q=MuSig2https://californiabitcoin.org/api/agent/v1/coveragehttps://californiabitcoin.org/api/agent/v1/sources