Author: Joost Jager 2023-06-03 07:49:36
Published on: 2023-06-03T07:49:36+00:00
In an email exchange, a user named David inquires about the features and benefits currently available for Bitcoin. The conversation touches on the topic of annex data with LN-Symmetry and the soft fork of SIGHASH_ANYPREVOUT that is required for it. The email also mentions the efficiency gain in reveal transaction witness and the potential for the elimination of the commit transaction, making it possible to include data in a single transaction that relies on its own transaction identifier (txid). This feature can be beneficial in scenarios that require the emulation of covenants through the use of presigned transactions involving an ephemeral signer. An example of this use case is establishing a time-locked vault using 2-of-2 multisig presigned transactions with one signer being ephemeral. The private key is discarded after signing, leaving only the signature, which can be stored as a backup in the annex of the transaction that the presigned transaction spends.
Updated on: 2023-06-16T18:43:52.643053+00:00