Hi Tom, without having gone into the details yet, thanks for the great effort you have put into this research and implementation already! > The bulk of our size savings come from replacing the prevout of each input by a block height and index. Have you also considered using just an index from a sorted UTXO set instead? The potential additional space saving might be minor but this would make the scheme compatible with pruning. I had this on my list as a future research topic but didn't get around to it yet. Thanks, Fabian ------- Original Message ------- On Thursday, August 31st, 2023 at 11:30 PM, Tom Briar via bitcoin-dev wrote: > Hey everyone, > > I've been working on a way to compress bitcoin transactions for transmission throughsteganography, satellite broadcasting, > and other low bandwidth channels with high CPU availability on decompression. > > [compressed_transactions.md](https://github.com/TomBriar/bitcoin/blob/2023-05--tx-compression/doc/compressed_transactions.md) > > In the document I describe a compression schema that's tailored for the most common transactions single parties are likely to make. > In every case it falls back such that no transaction will become malformed or corrupted. > Here's a PR for implementing this schema. > > [2023 05 tx compression](https://github.com/TomBriar/bitcoin/pull/3) > Thanks- > Tom.