Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1VnBb3-00039m-S3 for bitcoin-development@lists.sourceforge.net; Sun, 01 Dec 2013 18:18:21 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.215.179 as permitted sender) client-ip=209.85.215.179; envelope-from=mh.in.england@gmail.com; helo=mail-ea0-f179.google.com; Received: from mail-ea0-f179.google.com ([209.85.215.179]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1VnBb2-00046E-OU for bitcoin-development@lists.sourceforge.net; Sun, 01 Dec 2013 18:18:21 +0000 Received: by mail-ea0-f179.google.com with SMTP id r15so8193996ead.24 for ; Sun, 01 Dec 2013 10:18:14 -0800 (PST) X-Received: by 10.14.208.199 with SMTP id q47mr111194eeo.77.1385921894400; Sun, 01 Dec 2013 10:18:14 -0800 (PST) Received: from [192.168.1.105] (84-75-251-165.dclient.hispeed.ch. [84.75.251.165]) by mx.google.com with ESMTPSA id g7sm14174011eet.12.2013.12.01.10.18.11 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 01 Dec 2013 10:18:11 -0800 (PST) Sender: Mike Hearn Content-Type: multipart/signed; boundary="Apple-Mail=_6E151B1F-1B3E-422B-8A1E-F6DB171C095B"; protocol="application/pkcs7-signature"; micalg=sha1 Mime-Version: 1.0 (Mac OS X Mail 7.0 \(1822\)) From: Mike Hearn In-Reply-To: <20131201181211.GA20533@tilt> Date: Sun, 1 Dec 2013 19:18:07 +0100 Message-Id: <31CF9128-4BFA-48E6-9B68-9732E914E6D0@plan99.net> References: <5E4597E4-C1C7-4536-8CF0-82EDD7715DAB@plan99.net> <39921E12-B411-4430-9D56-04F53906B109@plan99.net> <20131201181211.GA20533@tilt> To: Peter Todd X-Mailer: Apple Mail (2.1822) 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 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (mh.in.england[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 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: 1VnBb2-00046E-OU Cc: bitcoin-development@lists.sourceforge.net, Andreas Schildbach Subject: Re: [Bitcoin-development] Floating fees and SPV clients 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: Sun, 01 Dec 2013 18:18:22 -0000 --Apple-Mail=_6E151B1F-1B3E-422B-8A1E-F6DB171C095B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 > Bitcoin is and always will be limited in capacity - transactions may = not > confirm in a reasonable about of time because of high-demand and/or = DoS > attacks. I agree in the general case, but I was talking about the mobile wallet = case specifically (i.e. people who are sending money between themselves = or making small purchases of physical things). I think Bitcoin should be = able to scale to handle these sorts of ordinary every-day transactions. = Where I=92d expect to see transactions falling off the edge is in more = specialised cases like very small single micropayments, or =93optional=94 = internal transactions like mixing/re/defragmentation of wallets that = don=92t correspond to an actual payment. Those sorts of transactions = would I guess be the first to go when faced with a sudden capacity = crunch, but they wouldn=92t show up in a mobile wallet UI anyway. > re: merchants paying tx fees, child-pays-for-parent is inefficient I know the existing code is, but is that fundamentally the case or just = how the code has been written? I haven=92t looked at this issue much but = I know you=92ve worked on it, so I=92m curious to learn about why it=92s = inefficient and whether there are any fixes possible.=09= --Apple-Mail=_6E151B1F-1B3E-422B-8A1E-F6DB171C095B Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIMcjCCBjQw ggQcoAMCAQICAR4wDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoTDVN0YXJ0 Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNpZ25pbmcxKTAn BgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3MTAyNDIxMDE1NVoX DTE3MTAyNDIxMDE1NVowgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1TdGFydENvbSBMdGQuMSsw KQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWduaW5nMTgwNgYDVQQDEy9TdGFy dENvbSBDbGFzcyAxIFByaW1hcnkgSW50ZXJtZWRpYXRlIENsaWVudCBDQTCCASIwDQYJKoZIhvcN AQEBBQADggEPADCCAQoCggEBAMcJg8zOLdgasSmkLhOrlr6KMoOMpohBllVHrdRvEg/q6r8jR+EK 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