From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 6631C119E for ; Thu, 4 Feb 2016 18:19:42 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from outmail149075.authsmtp.net (outmail149075.authsmtp.net [62.13.149.75]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 9A43C1BC for ; Thu, 4 Feb 2016 18:19:41 +0000 (UTC) Received: from mail-c232.authsmtp.com (mail-c232.authsmtp.com [62.13.128.232]) by punt20.authsmtp.com (8.14.2/8.14.2/) with ESMTP id u14IJdJe023784; Thu, 4 Feb 2016 18:19:39 GMT Received: from petertodd.org (ec2-52-5-185-120.compute-1.amazonaws.com [52.5.185.120]) (authenticated bits=0) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id u14IJZrW051717 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 4 Feb 2016 18:19:36 GMT Received: from [127.0.0.1] (localhost [127.0.0.1]) by petertodd.org (Postfix) with ESMTPSA id C4A4E40012; Thu, 4 Feb 2016 18:16:23 +0000 (UTC) Date: Thu, 4 Feb 2016 13:19:35 -0500 From: Peter Todd To: Gavin Andresen Message-ID: <20160204181935.GA28036@muck> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="gKMricLos+KVdGMg" Content-Disposition: inline In-Reply-To: X-Server-Quench: d8e813bc-cb6b-11e5-829e-00151795d556 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR aQdMdgYUHlAWAgsB AmAbWlxeUVR7WmU7 bghPaBtcak9QXgdq T0pMXVMcUQRseGZr RHkeVxh1dgIIcHp5 bAg2ViVTXUcoJlsu EEgGCGwHMGJ9YGIW BV1YdwJRcQRDe0tA b1YxNiYHcQ5VPz4z GA41ejw8IwAXCC1P Tg8KN1FaS0cXVhQd f3jL X-Authentic-SMTP: 61633532353630.1037:706 X-AuthFastPath: 0 (Was 255) X-AuthSMTP-Origin: 52.5.185.120/25 X-AuthVirus-Status: No virus detected - but ensure you scan with your own anti-virus system. X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: Bitcoin Dev Subject: Re: [bitcoin-dev] Hardfork bit BIP X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Feb 2016 18:19:42 -0000 --gKMricLos+KVdGMg Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Feb 04, 2016 at 12:36:06PM -0500, Gavin Andresen via bitcoin-dev wr= ote: > This BIP is unnecessary, in my opinion. >=20 > I'm going to take issue with items (2) and (3) that are the motivation for > this BIP: >=20 > " 2. Full nodes and SPV nodes following original consensus rules may not = be > aware of the deployment of a hardfork. They may stick to an > economic-minority fork and unknowingly accept devalued legacy tokens." >=20 > If a hardfork is deployed by increasing the version number in blocks (as = is > done for soft forks), then there is no risk-- Full and SPV nodes should > notice that they are seeing up-version blocks and warn the user that they > are using obsolete software. 1) There is no way to guarantee that nodes will see those blocks, and the current network behavior works against such guarantees even in the non-adversarial case. 2) I know of no currently deployed SPV wallet software that warns users about unknown block versions anyway. --=20 https://petertodd.org 'peter'[:-1]@petertodd.org 000000000000000008320874843f282f554aa2436290642fcfa81e5a01d78698 --gKMricLos+KVdGMg Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- iQGrBAEBCACVBQJWs5Y0XhSAAAAAABUAQGJsb2NraGFzaEBiaXRjb2luLm9yZzAw MDAwMDAwMDAwMDAwMDAwODMyMDg3NDg0M2YyODJmNTU0YWEyNDM2MjkwNjQyZmNm YTgxZTVhMDFkNzg2OTgvFIAAAAAAFQARcGthLWFkZHJlc3NAZ251cGcub3JncGV0 ZUBwZXRlcnRvZC5vcmcACgkQwIXyHOf0udym+Af+IrcaCxFNrl6EX8m09CgaJsW8 izJ8FPljcSMfEy3p3wU7hyIqq7GXQaHVLZPn3kBGJZf07GZD3c9z05tjT3JOZciA 4N/bTAHh5qOA09qGpwZi99mzCsk9ICvXqP3AwFRQ1lI+B9bEivgupLl7lYi1j5Q7 1NCVEqX0xiPbcR/j0Jr4XV8WG0mMxkoxBNP3zr/yp3j2Dcf7JNzaXkVAXW9qpwB7 BqCrp9W0jD5Ij0znotxWzg1nIjBxU8GwpIm08CBCbFJazGV0yaZHw7jgQ81418dO tRIYl+5H1NUcGT8mEc3eDAJP+/v/MBHmxl0da4zbeicATOJD1PPr4Hdtg7UJ/w== =jyP4 -----END PGP SIGNATURE----- --gKMricLos+KVdGMg--