From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1WCds4-000871-Pu for bitcoin-development@lists.sourceforge.net; Sun, 09 Feb 2014 23:33:08 +0000 Received-SPF: pass (sog-mx-2.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.223.171 as permitted sender) client-ip=209.85.223.171; envelope-from=pieter.wuille@gmail.com; helo=mail-ie0-f171.google.com; Received: from mail-ie0-f171.google.com ([209.85.223.171]) by sog-mx-2.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1WCds4-0006uv-3L for bitcoin-development@lists.sourceforge.net; Sun, 09 Feb 2014 23:33:08 +0000 Received: by mail-ie0-f171.google.com with SMTP id as1so3118225iec.16 for ; Sun, 09 Feb 2014 15:33:02 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.50.147.72 with SMTP id ti8mr11497529igb.20.1391988782756; Sun, 09 Feb 2014 15:33:02 -0800 (PST) Received: by 10.50.100.10 with HTTP; Sun, 9 Feb 2014 15:33:02 -0800 (PST) Date: Mon, 10 Feb 2014 00:33:02 +0100 Message-ID: From: Pieter Wuille To: Bitcoin Dev Content-Type: text/plain; charset=ISO-8859-1 X-Spam-Score: -1.6 (-) 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 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (pieter.wuille[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1WCds4-0006uv-3L Subject: [Bitcoin-development] [RFC] [BIP proposal] Dealing with malleability 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: Sun, 09 Feb 2014 23:33:08 -0000 Hello all, it was something I planned to do since a long time, but with the recent related issues popping up, I finally got around to writing a BIP about how we can get rid of transaction malleability over time. The proposed document is here: https://gist.github.com/sipa/8907691 I expect most rules to not be controversial. Maybe rules 1 and 3, as they require modifications to wallet software (Bitcoin Core 0.9 and BitcoinJ already implement it, though) and potentially invalidate some script functionality. However, these new rules remain optional and controlled by an nVersion increase. Comments please! -- Pieter