Good morning Zac, > Hi ZmnSCPxj, > > Thank you for your helpful response. We're on the same page concerning > privacy so I'll focus on that. I understand from your mail that privacy would > be reduced by this proposal because: > > * It requires the introduction of a new type of transaction that is different > from a "standard" transaction (would that be P2TR in the future?), reducing > the anonymity set for everyone; > * The payment and change output will be identifiable because the change > output must be marked encumbered on-chain; > * The specifics of how the output is encumbered must be visible on-chain as > well reducing privacy even further. > > I don't have the technical skills to judge whether these issues can somehow > be resolved. In functional terms, the output should be spendable in a way > that does not reveal that the output is encumbered, and produce a change > output that cannot be distinguished from a non-change output while still > being encumbered. Perhaps some clever MAST-fu could somehow help?
I believe some of the covenant efforts may indeed have such clever MAST-fu integrated into them, which is why I pointed you to them --- the people developing these (aj I think? RubenSomsen?) might be able to accommodate this or some subset of the desired feature in a sufficiently clever covenant scheme. There are a number of such proposals, though, so I cannot really point you to one that seems likely to have a lot of traction. Regards, ZmnSCPxj _______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
