Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1XFofi-0008Aj-HA for bitcoin-development@lists.sourceforge.net; Fri, 08 Aug 2014 18:13:46 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of bitpay.com designates 209.85.223.174 as permitted sender) client-ip=209.85.223.174; envelope-from=jgarzik@bitpay.com; helo=mail-ie0-f174.google.com; Received: from mail-ie0-f174.google.com ([209.85.223.174]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1XFofh-0006Uh-Ml for bitcoin-development@lists.sourceforge.net; Fri, 08 Aug 2014 18:13:46 +0000 Received: by mail-ie0-f174.google.com with SMTP id rp18so6907941iec.33 for ; Fri, 08 Aug 2014 11:13:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-type; bh=NdaZdodBKCmy/cd19CARuGp9Oj+j9uA9qe5Xrbdg9Js=; b=YxfWJYVj2BrSoj3lmjlqQ6zis49hDlqa9jvnii1WVZdBdMAXTcri8vkCjtwTCp0rBd ajq8YPsBJEvtTlvMygWkoHsSipBqxEosWs+41znlzsWZY5trmGTZtBulCxc2PW63/6lh zVExcng4rflxQENhQFa0Hsfz7gJjoCdjtCfRSZuK8FzpDFJZWsyjKeiFJzEb4mDqb1Wn nkIphIjWcTmc/KTQQ7mdXdzsPiQLCj4R7jX0yyHgjN15Du/Ti9DZAuDxr0BPNKmMgh6C auWaVhbZAY+o2o9HupyHH2LQ0D5f6OFZno9/nWHzk4FG/JzXJI6vnZM41Yhmt0gq/+vC ypWg== X-Gm-Message-State: ALoCoQlTxpiza9GJyLLCOQT6ENOUvUDXcypJ4IZXkXhm8VKozby2L7KwA35DCgEh1fh6beLs/QM/ X-Received: by 10.42.48.197 with SMTP id t5mr14474587icf.11.1407521620410; Fri, 08 Aug 2014 11:13:40 -0700 (PDT) MIME-Version: 1.0 Received: by 10.107.10.78 with HTTP; Fri, 8 Aug 2014 11:13:20 -0700 (PDT) In-Reply-To: <53E50B00.8030505@thinlink.com> References: <53E1A8AF.4030206@thinlink.com> <53E23F49.3020605@thinlink.com> <53E50B00.8030505@thinlink.com> From: Jeff Garzik Date: Fri, 8 Aug 2014 14:13:20 -0400 Message-ID: To: Tom Harding Content-Type: text/plain; charset=UTF-8 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 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: 1XFofh-0006Uh-Ml 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: Fri, 08 Aug 2014 18:13:46 -0000 On Fri, Aug 8, 2014 at 1:38 PM, Tom Harding wrote: >> 4. add a new IsStandard rule rejecting transactions with an nLockTime >> more than N blocks behind the current tip (for some fixed value N, to >> be determined) It cannot be assumed that transaction creation time and transaction publish-to-outside-world time are the same, even though they often are. -- Jeff Garzik Bitcoin core developer and open source evangelist BitPay, Inc. https://bitpay.com/