Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1YqlH1-0007tz-0p for bitcoin-development@lists.sourceforge.net; Fri, 08 May 2015 16:37:15 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of petertodd.org designates 62.13.149.82 as permitted sender) client-ip=62.13.149.82; envelope-from=pete@petertodd.org; helo=outmail149082.authsmtp.co.uk; Received: from outmail149082.authsmtp.co.uk ([62.13.149.82]) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1YqlGz-00031B-DH for bitcoin-development@lists.sourceforge.net; Fri, 08 May 2015 16:37:15 +0000 Received: from mail-c235.authsmtp.com (mail-c235.authsmtp.com [62.13.128.235]) by punt16.authsmtp.com (8.14.2/8.14.2/) with ESMTP id t48Gb5g8000337; Fri, 8 May 2015 17:37:05 +0100 (BST) Received: from savin.petertodd.org (75-119-251-161.dsl.teksavvy.com [75.119.251.161]) (authenticated bits=128) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id t48Gb1Iv005123 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Fri, 8 May 2015 17:37:04 +0100 (BST) Date: Fri, 8 May 2015 12:37:01 -0400 From: Peter Todd To: Mike Hearn Message-ID: <20150508163701.GA27417@savin.petertodd.org> References: <554BE0E1.5030001@bluematt.me> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5mCyUwZo2JvN/JJP" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Server-Quench: 75d8195a-f5a0-11e4-b396-002590a15da7 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR aQdMdgoUFVQNAgsB AmMbWlNeU1p7WWc7 bA9PbARUfEhLXhtr VklWR1pVCwQmRRgJ cUwfK19ydwBHen0+ ZEdjXngVW0EufUd0 Rx9JQ2hXZXphaTUb TRJbfgVJcANIexZF O1F6ACIKLwdSbGoL NQ4vNDcwO3BTJTpY RgYVKF8UXXNDNDo7 TBNKJjQ9EAUkQS4p IhU9JxYmEV8MM18/ NFYnRUlw X-Authentic-SMTP: 61633532353630.1023:706 X-AuthFastPath: 0 (Was 255) X-AuthSMTP-Origin: 75.119.251.161/587 X-AuthVirus-Status: No virus detected - but ensure you scan with your own anti-virus system. X-Spam-Score: -1.5 (-) 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 -0.0 AWL AWL: Adjusted score from AWL reputation of From: address X-Headers-End: 1YqlGz-00031B-DH Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Block Size Increase Requirements 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 May 2015 16:37:15 -0000 --5mCyUwZo2JvN/JJP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 08, 2015 at 12:03:04PM +0200, Mike Hearn wrote: > > > > * Though there are many proposals floating around which could > > significantly decrease block propagation latency, none of them are > > implemented today. >=20 >=20 > With a 20mb cap, miners still have the option of the soft limit. The soft-limit is there miners themselves produce smaller blocks; the soft-limit does not prevent other miners from producing larger blocks. As we're talking about ways that other miners can use 20MB blocks to harm the competition, talking about the soft-limit is irrelevant. Similarly, as security engineers we must plan for the worst case; as we've seen before by your campaigns to raise the soft-limit(1) even at a time when the vast majority of transaction volume was from one user (SatoshiDice) soft-limits are an extremely weak form of control. For the proposes of discussing blocksize increase requirements we can stop talking about the soft-limit. 1) https://bitcointalk.org/index.php?topic=3D149668.0 --=20 'peter'[:-1]@petertodd.org 000000000000000009344ba165781ee352f93d657c8b098c8e518e6011753e59 --5mCyUwZo2JvN/JJP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- iQGrBAEBCACVBQJVTOYpXhSAAAAAABUAQGJsb2NraGFzaEBiaXRjb2luLm9yZzAw MDAwMDAwMDAwMDAwMDAwZWU5OTM4MmFjNmJjMDQzMTIwMDg1OTczYjdiMDM3ODgx MWMxYWNkOGUzY2RkOWMvFIAAAAAAFQARcGthLWFkZHJlc3NAZ251cGcub3JncGV0 ZUBwZXRlcnRvZC5vcmcACgkQJIFAPaXwkfvztggAs2KOgtJyLOgf1zr2I8QPZMMw QFtw3DIrIru3JWgm1OxvryGVQmd8ojnvVZPsJsGcSSY5dSCXE/jpvWRqP9LKLyah qmnygSHrEKsJ94g07wg4a6bz06fqVLlV1YCWQlXs/qk/kNTa1+mbYFPCb3g3hqfb 7WmBKYF2en33PkUKMInKVTJmLtNg83AkQLe07DaJKVGm+a7hYTdDhgfG48cLhv4w mS/Svm89dMsMuLaB5H2yjWlBIdHlkHDHk9jAcxqH+rEBtbIz+w029AhsR4ckFGTd kx8LZpNrHaDFHjJzHupkYiXNBljJJW8Yk22v7OvJcR+uqaz/TvDH15Kc68ABJw== =+WlR -----END PGP SIGNATURE----- --5mCyUwZo2JvN/JJP--