PSBT

Partially Signed Bitcoin Transactions. 3 proposals.

BIP 174: Partially Signed Bitcoin Transaction Format: Deployed. Defines PSBT (Partially Signed Bitcoin Transaction), a standard file format for a transaction that is still collecting signatures. It lets different wallets, hardware devices, and co-signers pass a…
BIP 370: PSBT Version 2: Deployed. Updates the Partially Signed Bitcoin Transaction (PSBT) format, a standard file for passing an unfinished transaction between wallets and signing devices. Version 2 allows inputs and outputs to be…
BIP 371: Taproot Fields for PSBT: Deployed. Adds Taproot-related information to the Partially Signed Bitcoin Transaction (PSBT) format that wallets use to hand transactions to signers. This lets hardware wallets and other signing tools…