Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id EFF2D411 for ; Sat, 25 Jul 2015 19:52:15 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from zinan.dashjr.org (zinan.dashjr.org [192.3.11.21]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 7DFEAFD for ; Sat, 25 Jul 2015 19:52:15 +0000 (UTC) Received: from ishibashi.localnet (unknown [IPv6:2001:470:5:265:61b6:56a6:b03d:28d6]) (Authenticated sender: luke-jr) by zinan.dashjr.org (Postfix) with ESMTPSA id D97D8108040A; Sat, 25 Jul 2015 19:51:54 +0000 (UTC) X-Hashcash: 1:25:150725:bitcoin-dev@lists.linuxfoundation.org::NKNEYmG7F6+Hm3H0:XKaj X-Hashcash: 1:25:150725:jeremy.l.rubin.travel@gmail.com::2urBiY43MFf7d3Lo:WhwB From: Luke Dashjr To: bitcoin-dev@lists.linuxfoundation.org, Jeremy Rubin Date: Sat, 25 Jul 2015 19:51:53 +0000 User-Agent: KMail/1.13.7 (Linux/4.1.1-gentoo-r1; KDE/4.14.8; x86_64; ; ) References: In-Reply-To: X-PGP-Key-Fingerprint: E463 A93F 5F31 17EE DE6C 7316 BD02 9424 21F4 889F X-PGP-Key-ID: BD02942421F4889F X-PGP-Keyserver: hkp://pgp.mit.edu MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201507251951.53970.luke@dashjr.org> X-Spam-Status: No, score=-3.1 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: Re: [bitcoin-dev] BIP Draft: Minimum Viable TXIn Hash X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Jul 2015 19:52:16 -0000 On Thursday, July 23, 2015 8:12:19 PM Jeremy Rubin via bitcoin-dev wrote: > Please see the following draft BIP which should decrease the amount of > bytes needed per transaction. This is very much a draft BIP, as the design > space for this type of improvement is large. > > This BIP can be rolled out by a soft fork. > > Improvements are around 12% for standard "one in two out" txn, and even > more with more inputs hashes. > > https://gist.github.com/JeremyRubin/e175662d2b8bf814a688 This looks like just a p2p protocol optimisation, which doesn't even need a softfork. You do need to document the suggested protocol changes more specifically, however. Luke