Author: Greg Sanders 2023-06-12 13:03:47
Published on: 2023-06-12T13:03:47+00:00
The email thread on the bitcoin-dev mailing list discusses various aspects of the Taproot annex. The annex is believed to be useful for data storage uses that utilize OP_RETURN or inscriptions, as it improves space efficiency and its data isn't included in the calculation of the txid or a potential parent commit transaction's txid. One critical application of the annex is time-locked vaults, which can be safeguarded using pre-signed transactions signed using an ephemeral key and backed up on the blockchain using the annex. However, a potential payload extension attack could downgrade the overall transaction feerate, but changes proposed in [3] to allow tx replacement by smaller witness are considered to provide a viable solution. The primary motivation behind adopting a simple approach to Taproot annex is to avoid a potentially long standardization process, and simpler changes often encounter less resistance and can be implemented more swiftly.
Updated on: 2023-06-16T18:45:22.957575+00:00