From mark at friedenbach.org Thu Nov 19 17:56:15 2015 From: mark at friedenbach.org (Mark Friedenbach) Date: Thu, 19 Nov 2015 09:56:15 -0800 Subject: [Lightning-dev] Lightning, the death of BIP62, and Segregated Witness In-Reply-To: References: <87si42n1ir.fsf@rustcorp.com.au> <1447920788.2353.12.camel@ultimatestunts.nl> Message-ID: The basic idea of the soft-fork plan is very simple --- have the scriptPubKey be just the 20-byte hash of the redeem script. The scriptSig of the spending input is empty. The actual scriptSig, with the redeem script and signatures, is contained in a separate Merkle tree committed to elsewhere in the block (e.g. in the last output of the coinbase, or the last output of the last transaction). On Thu, Nov 19, 2015 at 7:31 AM, Greg Sanders wrote: > The hardfork variant is quite simple, if I understood it correctly. You > just stick the signatures in another parallel merkle tree. So if you don't > want to validate signatures, just don't download them, and validate > everything else. TXIDs don't use the signature at all. Nothing to malleate, > AFAIK. Not sure what the softfork plan is, but it will be a talk at Scaling > Bitcoin HK. > > On Thu, Nov 19, 2015 at 10:28 AM, Glenn Tarbox, PhD > wrote: > >> >> On Thu, Nov 19, 2015 at 4:33 AM, sickpig at gmail.com >> wrote: >> >>> Hi Pierre >>> >>> you could start here >>> >>> >>> https://github.com/ElementsProject/elementsproject.github.io#segregated-witness >>> >>> https://people.xiph.org/~greg/blockstream.gmaxwell.elements.talk.060815.pdf >>> https://github.com/ElementsProject/elements >> >> >> There was a brief blip on Reddit: >> >> >> https://www.reddit.com/r/Bitcoin/comments/3ngtx5/could_the_segregated_witness_part_of_the/cwnthlh >> >> Its weird how little information there is on Segregated Witness. I'm >> guessing its a simple concept and those working on it (sipa / gmaxwell) >> haven't felt the need to write it up. >> >> That it "apparently" can be done with a soft fork similar to P2SH is good >> news... I guess... >> >> >> -- >> Glenn H. Tarbox, PhD >> =]|[= >> >> _______________________________________________ >> Lightning-dev mailing list >> Lightning-dev at lists.linuxfoundation.org >> https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev >> >> > > _______________________________________________ > Lightning-dev mailing list > Lightning-dev at lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev > > -------------- next part -------------- An HTML attachment was scrubbed... URL: