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Explainers: Multisig

A Bitcoin PSBT moves from an offline wallet through two signers to finalization and broadcast
Bitcoin ·

Bitcoin PSBT: How Signing, Combining and Finalizing Work

Follow a Bitcoin PSBT from unsigned proposal through offline signing, combination, finalization and broadcast.

Three independent key holders connected to a shared wallet lock, illustrating distributed approval.
Wallet security ·

Multisig vs MPC Wallets: Where the Approval Rule Lives

Multisig exposes a threshold rule onchain; MPC can produce one signature from distributed key shares.

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