Multisig (Multi-Signature)
Security● Common
A spending condition requiring multiple private keys to authorize a transaction. Expressed as m-of-n (e.g., 2-of-3): m signatures required from n possible keys. Used for security (no single point of failure), shared custody, and organizational controls.
Technical Notes
Legacy: OP_CHECKMULTISIG (up to 15-of-15). P2SH wraps complex scripts. Schnorr enables MuSig2/FROST: threshold signing with single aggregated signature indistinguishable from single-sig. Common setups: 2-of-3 personal, 3-of-5 institutional.
Metadata
Visibility: Public
Created:1/3/2026by System