Module tapret

Processing proprietary PSBT keys related to taproot-based OP_RETURN (or tapret) commitments.

NB: Wallets supporting tapret commitments must do that through the use of deterministic bitcoin commitments crate (bp-dpc) in order to ensure that multiple protocols can put commitment inside the same transaction without collisions between them.

This module provides support for marking PSBT outputs which may host tapreturn commitment and populating PSBT with the data related to tapret commitments.

Enums

• TapretKeyError
  Errors processing tapret-related proprietary PSBT keys and their values.

Constants

• PSBT_IN_TAPRET_TWEAK
  Proprietary key subtype for PSBT inputs containing the applied tapret tweak information.
• PSBT_OUT_TAPRET_COMMITMENT
  Proprietary key subtype holding 32-byte commitment which will be put into tapret tweak.
• PSBT_OUT_TAPRET_HOST
  Proprietary key subtype marking PSBT outputs which may host tapreturn commitment.
• PSBT_OUT_TAPRET_PROOF
  Proprietary key subtype holding merkle branch path to tapreturn tweak inside the taptree structure.
• PSBT_TAPRET_PREFIX
  PSBT proprietary key prefix used for tapreturn commitment.