PSBT (Partially Signed Bitcoin Transaction)
Transactions● Common
A standard format (BIP-174) for passing unsigned or partially signed transactions between wallets and devices. Enables workflows like multisig signing, hardware wallet interaction, and CoinJoin coordination without exposing private keys.
Technical Notes
Contains: unsigned tx, UTXO data, derivation paths, partial signatures, scripts. Version 2 (BIP-370) adds additional fields. Flow: Creator → Updater → Signer(s) → Combiner → Finalizer → Extractor. Base64 encoded for transmission.
Metadata
Visibility: Public
Created:1/3/2026by System