From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1U5JsT-0002TG-2F for bitcoin-development@lists.sourceforge.net; Tue, 12 Feb 2013 17:42:45 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 74.125.82.176 as permitted sender) client-ip=74.125.82.176; envelope-from=gavinandresen@gmail.com; helo=mail-we0-f176.google.com; Received: from mail-we0-f176.google.com ([74.125.82.176]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1U5JsR-00021B-Je for bitcoin-development@lists.sourceforge.net; Tue, 12 Feb 2013 17:42:45 +0000 Received: by mail-we0-f176.google.com with SMTP id s43so275908wey.21 for ; Tue, 12 Feb 2013 09:42:37 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.180.73.80 with SMTP id j16mr4990883wiv.5.1360690957421; Tue, 12 Feb 2013 09:42:37 -0800 (PST) Received: by 10.194.176.164 with HTTP; Tue, 12 Feb 2013 09:42:37 -0800 (PST) In-Reply-To: <20130212151108.GA639@savin> References: <20130212151108.GA639@savin> Date: Tue, 12 Feb 2013 12:42:37 -0500 Message-ID: From: Gavin Andresen To: Peter Todd Content-Type: multipart/alternative; boundary=f46d043bdf382a8cf804d58a8df6 X-Spam-Score: -0.6 (/) 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 (gavinandresen[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message -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: 1U5JsR-00021B-Je Cc: bitcoin-development@lists.sourceforge.net Subject: Re: [Bitcoin-development] RFC: empty scriptPubKeys and OP_RETURN for marking unspendable txouts 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: Tue, 12 Feb 2013 17:42:45 -0000 --f46d043bdf382a8cf804d58a8df6 Content-Type: text/plain; charset=ISO-8859-1 On Tue, Feb 12, 2013 at 10:11 AM, Peter Todd wrote: > .... Again, thoughts? > First: I really like the fidelity bond concept, and want to see it happen. RE: OP_RETURN : I've got a knee-jerk opposition to the OP_RETURN opcode, because it was the cause of the nastiest bug ever Bitcoin history. So I'd be more comfortable using either OP_FALSE or OP_INVALIDOPCODE for the "provably unspendable" transaction. RE: anyone-can-spend transactions: Thinking aloud... I wonder if we might inadvertently cause "spend storms" on the network; if suddenly there are 11 BTC sitting in an anybody-can-spend txout, I could imagine EVERYBODY on the network trying to race each other to spend it (maybe assuming that there are a few miners on old versions of the software who are too dumb to claim it for themselves). -- -- Gavin Andresen --f46d043bdf382a8cf804d58a8df6 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Tue, Feb 12, 2013 at 10:11 AM, Peter Todd <pete@petertodd.org>= wrote:
.... Again, thoughts?

First: I really l= ike the fidelity bond concept, and want to see it happen.

RE: OP_RETURN : I've got a knee-jerk opposition to the OP_RETUR= N opcode, because it was the cause of the nastiest bug ever Bitcoin history= . So I'd be more comfortable using either OP_FALSE or OP_INVALIDOPCODE = for the "provably unspendable" transaction.


RE: anyone-can-spend transactions: =A0Th= inking aloud... I wonder if we might inadvertently cause "spend storms= " on the network; if suddenly there are 11 BTC sitting in an anybody-c= an-spend txout, I could imagine EVERYBODY on the network trying to race eac= h other to spend it (maybe assuming that there are a few miners on old vers= ions of the software who are too dumb to claim it for themselves).


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Gavin Andresen
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