Yea I generally would really prefer something like that but it significantly complicates the download logic - currently clients can easily cross-check a filter in case they differ between providers by downloading the block. If we instead went with the script being spent they would have to be provided all previous transactions (potentially compressed via midstate) as well, making it potentially infeasible to identify the offending node while remaining a lightweight client. Maybe there is some other reasonable download logic to replace it with, however.
Matt On 05/17/18 12:36, Gregory Maxwell wrote: > On Thu, May 17, 2018 at 3:25 PM, Matt Corallo via bitcoin-dev > <bitcoin-dev@lists.linuxfoundation.org> wrote: >> I believe (1) could be skipped entirely - there is almost no reason why >> you'd not be able to filter for, eg, the set of output scripts in a >> transaction you know about > > I think this is convincing for the txids themselves. > > What about also making input prevouts filter based on the scriptpubkey > being _spent_? Layering wise in the processing it's a bit ugly, but > if you validated the block you have the data needed. > > This would eliminate the multiple data type mixing entirely. > _______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev