Bitcoin Multisig Explained: How 2-of-3 and 3-of-5 Setups Work in 2026
Bitcoin multisig requires multiple private keys to authorize transactions — eliminating single points of failure. This guide explains 2-of-3 and 3-of-5 setups, PSBT signing workflows, the best hardware wallets for multisig, and whether to DIY or use Unchained or Casa.