Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Z6S3u-0002F4-2s for bitcoin-development@lists.sourceforge.net; Sat, 20 Jun 2015 23:20:34 +0000 Received: from mail-wi0-f175.google.com ([209.85.212.175]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1Z6S3t-000259-0x for bitcoin-development@lists.sourceforge.net; Sat, 20 Jun 2015 23:20:34 +0000 Received: by wibdq8 with SMTP id dq8so45785414wib.1 for ; Sat, 20 Jun 2015 16:20:27 -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:date :message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=C5brTz9OY13Ydg1kbFC7oLVCgu/peAMXxfZSItFrhig=; b=Ia/Q7Qac9Cx+7KhrRgOtxEU8+jK+MbDSbMSZdaaGq7RqVNZRvUqoGNZ8uz/+kmDW0f zF+Mu6LlSJJsdusx/isJlEe0CxnkAMoYxU3kmNtpyqIm+0JhuFwV5IrX9wU5wSw7Yct/ TkOpQq8f15ulB82wWGeGJgQ8FSYiYXn58pr4uHijivANCfbZ1/vXEiAC5IwLpXi8b1lS 6KV1HTVLWma/HUfwBRyBf2M+v8e8v589QFqOJLoPHzd1zspdy7zprEzYwh8mkVxeCx06 6i1EfFmkPke+pgHuVL9IDIi7EpBbkdah06pbpjFxZ/HPc5f/PiF19tSE/Re3Sg5UMNbw Q/vA== X-Gm-Message-State: ALoCoQmOdKNjpsyqpSnq/iX2Bcw0URVW8KgESs6QUbr22DUyBoVf0e3mS8qGLPBdt+s277AjT+83 MIME-Version: 1.0 X-Received: by 10.194.58.7 with SMTP id m7mr36339252wjq.109.1434842427044; Sat, 20 Jun 2015 16:20:27 -0700 (PDT) Received: by 10.194.139.235 with HTTP; Sat, 20 Jun 2015 16:20:26 -0700 (PDT) In-Reply-To: <83A7C606-B601-47D2-BE10-2A1412D97514@gmail.com> References: <20150619103959.GA32315@savin.petertodd.org> <04CE3756-B032-464C-8FBD-7ACDD1A3197D@gmail.com> <812d8353e66637ec182da31bc0a9aac1@riseup.net> <1727885.UUNByX4Jyd@crushinator> <83A7C606-B601-47D2-BE10-2A1412D97514@gmail.com> Date: Sun, 21 Jun 2015 01:20:26 +0200 Message-ID: From: =?UTF-8?B?Sm9yZ2UgVGltw7Nu?= To: Eric Lombrozo Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.2 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. 0.2 AWL AWL: Adjusted score from AWL reputation of From: address X-Headers-End: 1Z6S3t-000259-0x Cc: Bitcoin Dev , Justus Ranvier Subject: Re: [Bitcoin-development] F2Pool has enabled full replace-by-fee 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: Sat, 20 Jun 2015 23:20:34 -0000 On Fri, Jun 19, 2015 at 6:42 PM, Eric Lombrozo wrote: > If we want a non-repudiation mechanism in the protocol, we should explici= tly define one rather than relying on =E2=80=9Cprima facie=E2=80=9D assumpt= ions. Otherwise, I would recommend not relying on the existence of a signed= transaction as proof of intent to pay=E2=80=A6 Non-repudiation can be built on top of the payment protocol layer.