rich1.0npub1xddusuj8cyeqaqalq0zklafvdgr26pt32t0tvquw5mmwwwm3dehsqlkyw0https://nostr.ae/npub1xddusuj8cyeqaqalq0zklafvdgr26pt32t0tvquw5mmwwwm3dehsqlkyw0njumphttps://nostr.ae📅 Original date posted:2017-05-08 📝 Original message:Sergio, I'm not sure what the data you present has to do with the discount. A 75% discount prevents witness spam precisely because it is 75%, nothing more. The current usage simply gives a guideline on how much capacity is gained through a particular discount. With the data you show, it would imply that those blocks, with SegWit used where possible, would result in blocks of ~1.8MB. On Mon, May 8, 2017 at 5:42 PM, Sergio Demian Lerner via bitcoin-dev < bitcoin-dev at lists.linuxfoundation.org> wrote: > I have processed 1000 blocks starting from Block #461653. > > I computed several metrics, including the supposed size of witness data > and non-witness data (onchain), assuming all P2SH inputs/outputs are > converted to P2PWSH and all P2PKH inputs/outputs are converted to P2WPKH. > > This takes into account that other types of transactions will not be > modified by Segwit (e.g. OP_RETURN outputs, or P2PK). This analysis doesn't > take into account that LN transactions may affect the current state, > increasing the segwit/nosegwit ratio. > > Among a lot of information, I've got the following real world results... > > acMainChainSpace =352608924 > acSegwitSpace =599400403 > Ratio segwit/nosegwit=1.6999 > > This implies that the 75% that discount is not the best option to prevent > witness spam in a block of 4 MB, as stated in https://segwit.org/why-a- > discount-factor-of-4-why-not-2-or-8-bbcebe91721e. > > The non-witness data weight factor should not be 4 but 2.35. The closest > integer value is 2, which leads to a 50% witness discount. > > The Bitcoinj source code is available for anyone to review. I encourage > anyone to re-compute this with another utility to cross-check. Maybe > Antoine Le Calvez (p2sh.info) would like to double-check. > > > > > > > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev at lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20170508/eda3ff72/attachment.html>