Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1XF3Qw-0001sc-29 for bitcoin-development@lists.sourceforge.net; Wed, 06 Aug 2014 15:47:22 +0000 Received-SPF: pass (sog-mx-3.v43.ch3.sourceforge.com: domain of petertodd.org designates 62.13.149.56 as permitted sender) client-ip=62.13.149.56; envelope-from=pete@petertodd.org; helo=outmail149056.authsmtp.com; Received: from outmail149056.authsmtp.com ([62.13.149.56]) by sog-mx-3.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1XF3Qu-0006Jv-1S for bitcoin-development@lists.sourceforge.net; Wed, 06 Aug 2014 15:47:21 +0000 Received: from mail-c235.authsmtp.com (mail-c235.authsmtp.com [62.13.128.235]) by punt17.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s76FlBUp059313; Wed, 6 Aug 2014 16:47:11 +0100 (BST) Received: from [25.92.175.101] ([24.114.25.123]) (authenticated bits=0) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s76Fl4rV084687 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 6 Aug 2014 16:47:06 +0100 (BST) User-Agent: K-9 Mail for Android In-Reply-To: References: <53E1A8AF.4030206@thinlink.com> <53E23F49.3020605@thinlink.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 From: Peter Todd Date: Wed, 06 Aug 2014 08:42:08 -0700 To: Christian Decker , Jeff Garzik Message-ID: <63a80796-609e-43f5-9280-4cd8cf5d2648@email.android.com> X-Server-Quench: ebd5dd2d-1d80-11e4-b396-002590a15da7 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR aQdMdgQUGUATAgsB AmIbWlJeVFp7WWQ7 aQ5PbARZfEhLQQRo U1dNRFdNFUsrBhp3 WhpcNBl6cwNOfzB5 Z0RmECUJCEEuIUQp X08AHW0bZGY1bH1N U0leagNUcgZDfk5E bwQuUz1vNG8XDQg5 AwQ0PjZ0MThBJSBS WgQAK04nCUoGAjMm QhEEHC4zHEZNWz86 KQcvIUIdG0BZP1Uq MEEoRVMfNXc8 X-Authentic-SMTP: 61633532353630.1023:706 X-AuthFastPath: 0 (Was 255) X-AuthSMTP-Origin: 24.114.25.123/465 X-AuthVirus-Status: No virus detected - but ensure you scan with your own anti-virus system. X-Spam-Score: -1.5 (-) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain -0.0 SPF_PASS SPF: sender matches SPF record X-Headers-End: 1XF3Qu-0006Jv-1S Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] deterministic transaction expiration X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Aug 2014 15:47:22 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 6 August 2014 08:17:02 GMT-07:00, Christian Decker wrote: >+1 for the new field, overloading fields with new meaning is definitely >not >a good idea. To add a new field the best way to do it is create a new, parallel, tx format where fields are committed by merkle radix tree in an extensible and provable way. You'd then commit to that tree with a mandatory OP_RETURN output in the last txout, or with a new merkle root. Changing the tx format itself in a hard-fork is needlessly disruptive, and in this case, wastes opportunities for improvement. -----BEGIN PGP SIGNATURE----- Version: APG v1.1.1 iQFQBAEBCAA6BQJT4kzQMxxQZXRlciBUb2RkIChsb3cgc2VjdXJpdHkga2V5KSA8 cGV0ZUBwZXRlcnRvZGQub3JnPgAKCRAZnIM7qOfwhamzCAC+zRaXRodP63+ke3K+ Viapiepvk4uIOlqxqtMB2O0zWcyu2+xCJDiRPykK/6HLDBeFDEC9/dGK8++Lovl6 //qZ340LOPFlgT2kYy9E5h/yX469fhtsWhBCv2K47fWwkMS0S/0r4SQnCkbt2R2c 4dQjkoldhw6rNMBTUmwvhSlL30KsT/msWTZiX7DW/YjfOzezEJzy+mYyKp9Sk7ba 1fOiBXORk7mNOs7sTYTvje3sqEGpGTOLP08cY/RCEvl6bG8mHkPqwiojq+3biHFP RsoBVu1f5cbnU7Wq0gPNdVnQssnEQDadyTX8gT0Wze7PuVyaZT2mXFZBKzSHuLy2 sJKN =oPSo -----END PGP SIGNATURE-----