Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1YQwOl-0003ld-Pr for bitcoin-development@lists.sourceforge.net; Thu, 26 Feb 2015 11:14:31 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 74.125.82.175 as permitted sender) client-ip=74.125.82.175; envelope-from=oleganza@gmail.com; helo=mail-we0-f175.google.com; Received: from mail-we0-f175.google.com ([74.125.82.175]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1YQwOk-0004D6-Te for bitcoin-development@lists.sourceforge.net; Thu, 26 Feb 2015 11:14:31 +0000 Received: by wesx3 with SMTP id x3so9570010wes.7 for ; Thu, 26 Feb 2015 03:14:24 -0800 (PST) X-Received: by 10.194.86.194 with SMTP id r2mr15899694wjz.41.1424949264864; Thu, 26 Feb 2015 03:14:24 -0800 (PST) Received: from ?IPv6:2a01:e35:8a2c:a630:3040:78ad:a018:c67b? ([2a01:e35:8a2c:a630:3040:78ad:a018:c67b]) by mx.google.com with ESMTPSA id md8sm29354061wic.13.2015.02.26.03.14.23 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 26 Feb 2015 03:14:23 -0800 (PST) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2070.6\)) From: Oleg Andreev In-Reply-To: <54EEF12B.2050803@schildbach.de> Date: Thu, 26 Feb 2015 12:14:22 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <771EF431-6644-4BE4-B39C-CA73CFC18DB4@gmail.com> <54EEE81F.1000602@schildbach.de> <54EEF12B.2050803@schildbach.de> To: Andreas Schildbach X-Mailer: Apple Mail (2.2070.6) X-Spam-Score: -1.6 (-) 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 (oleganza[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 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: 1YQwOk-0004D6-Te Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Providing Payment Request within URI 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: Thu, 26 Feb 2015 11:14:31 -0000 > Base43 is the same as any BaseX standard, but using a different = alphabet > (43 characters). It's meant to be used for efficiently storing binary > data into QR codes. The alphabet is picked to match the 'Alphanumeric' > input mode of QR codes as closely as possible, but at the same time be > allowed in URIs. Does it mean Base58 or Base64 take more space in QR code than Base43? Do = you have an estimate of the gains?=20