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Updated: Jul 29, 2026

PSKT Roles

Reference table of the roles in Kaspa's PSKT implementation, as defined by BIP-370.

For an explanation of the overall signing flow, see Partially Signed Kaspa Transactions.

Role	Notes
Creator	Initializes the PSKT (with 0 inputs and 0 outputs).
Constructor	Adds inputs/outputs.
Updater	Sets sequence number.
Signer	Signs inputs.
Combiner	Merges multiple PSKTs into one.
Finalizer	Completes the PSKT (ensures all inputs have valid signatures, and finalizes the transaction).
Extractor	Extracts final transaction from the PSKT.

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