From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1YqlVG-0000Gx-J2 for bitcoin-development@lists.sourceforge.net; Fri, 08 May 2015 16:51:58 +0000 Received-SPF: pass (sog-mx-2.v43.ch3.sourceforge.com: domain of petertodd.org designates 62.13.148.114 as permitted sender) client-ip=62.13.148.114; envelope-from=pete@petertodd.org; helo=outmail148114.authsmtp.net; Received: from outmail148114.authsmtp.net ([62.13.148.114]) by sog-mx-2.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1YqlVF-00014P-D9 for bitcoin-development@lists.sourceforge.net; Fri, 08 May 2015 16:51:58 +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 t48Gpnre036515; Fri, 8 May 2015 17:51:49 +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 t48GpjbL055338 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Fri, 8 May 2015 17:51:47 +0100 (BST) Date: Fri, 8 May 2015 12:51:45 -0400 From: Peter Todd To: Joel Joonatan Kaartinen Message-ID: <20150508165144.GC27417@savin.petertodd.org> References: <16096345.A1MpJQQkRW@crushinator> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="HG+GLK89HZ1zG0kk" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Server-Quench: 848a95a8-f5a2-11e4-b396-002590a15da7 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd2Yg0TA1ZNQRgX IjsJECJaVQIpKltL GxAVKBZePFsRUQkR aQdMdgoUFVQNAgsB AmMbWlNeVVx7XWs7 bA9PbARUfEhLXhtr VklWR1pVCwQmRRgJ cV5EAGVycgBFe3Y+ ZEdrV3YVVEByJE94 E0ZJQ2hXZ3phaTUb TRJbfgVJcANIexZF O1F6ACIKLwdSbGoL NQ4vNDcwO3BTJTpY RgYVKF8UXXNDJiQ7 XxcZEDlnFEkZSj81 JgAnNFMHVFoWelky PBN7AXcyewQOBxU8 V09QBiRFJl4HLwAA 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 X-Headers-End: 1YqlVF-00014P-D9 Cc: Bitcoin Development Subject: Re: [Bitcoin-development] Proposed alternatives to the 20MB step function 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 16:51:58 -0000 --HG+GLK89HZ1zG0kk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 08, 2015 at 03:32:00PM +0300, Joel Joonatan Kaartinen wrote: > Matt, >=20 > It seems you missed my suggestion about basing the maximum block size on > the bitcoin days destroyed in transactions that are included in the block. > I think it has potential for both scaling as well as keeping up a constant > fee pressure. If tuned properly, it should both stop spamming and increase > block size maximum when there are a lot of real transactions waiting for > inclusion. The problem with gating block creation on Bitcoin days destroyed is there's a strong potential of giving big mining pools an huge advantage, because they can contract with large Bitcoin owners and buy dummy transactions with large numbers of Bitcoin days destroyed on demand whenever they need more days-destroyed to create larger blocks. Similarly, with appropriate SIGHASH flags such contracting can be done by modifying *existing* transactions on demand. Ultimately bitcoin days destroyed just becomes a very complex version of transaction fees, and it's already well known that gating blocksize on total transaction fees doesn't work. --=20 'peter'[:-1]@petertodd.org 00000000000000000f53e2d214685abf15b6d62d32453a03b0d472e374e10e94 --HG+GLK89HZ1zG0kk Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- iQGrBAEBCACVBQJVTOmdXhSAAAAAABUAQGJsb2NraGFzaEBiaXRjb2luLm9yZzAw MDAwMDAwMDAwMDAwMDAwZjUzZTJkMjE0Njg1YWJmMTViNmQ2MmQzMjQ1M2EwM2Iw ZDQ3MmUzNzRlMTBlOTQvFIAAAAAAFQARcGthLWFkZHJlc3NAZ251cGcub3JncGV0 ZUBwZXRlcnRvZC5vcmcACgkQJIFAPaXwkfv1uAf/aDOU10rPwI7v/KOxxfR31qLQ W30RXu00O9si/MTfL53uPeoiFClDIXIqXKsg+351D6IEjW1Cpssj7zuJUOjDjU5R nizs8yhAUegJmtgm/A6IfUpalDbAHnP7JPmVd5pcX7rE8ybgvm4YLwMo9i+cqIsw FWriT4s74u6X2+YmIatotLiizckpVUh4e8a0bZptRBETfv1QXFl0cuNfcUjxWAYI aa7u4zzmo5Ot3kX7CuUBusfA2kkxeGCz56pzGi+Gt3/ojWAetmbSIMwYnhFp30hI yeacIR2loORk/BZjc82eHmb+yc0u9KOR6RL/nPieG3nbx+s0OLvtqxLdRiQe/A== =3/QT -----END PGP SIGNATURE----- --HG+GLK89HZ1zG0kk--