From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1V7BqA-0003Di-Ld for bitcoin-development@lists.sourceforge.net; Wed, 07 Aug 2013 22:04:22 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gnomon.org.uk designates 93.93.131.22 as permitted sender) client-ip=93.93.131.22; envelope-from=roy@gnomon.org.uk; helo=darla.gnomon.org.uk; Received: from darla.gnomon.org.uk ([93.93.131.22]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1V7Bq7-0006VT-6b for bitcoin-development@lists.sourceforge.net; Wed, 07 Aug 2013 22:04:22 +0000 Received: from darla.gnomon.org.uk (localhost.gnomon.org.uk [127.0.0.1]) by darla.gnomon.org.uk (8.14.3/8.14.3) with ESMTP id r77M3w8H045501 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 7 Aug 2013 23:04:03 +0100 (BST) (envelope-from roy@darla.gnomon.org.uk) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.95.3 at darla.gnomon.org.uk Received: (from roy@localhost) by darla.gnomon.org.uk (8.14.3/8.14.1/Submit) id r77M3wDa045500; Wed, 7 Aug 2013 23:03:58 +0100 (BST) (envelope-from roy) Date: Wed, 7 Aug 2013 23:03:58 +0100 From: Roy Badami To: Pieter Wuille Message-ID: <20130807220358.GB45156@giles.gnomon.org.uk> References: <20130807214757.GA45156@giles.gnomon.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) 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_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Headers-End: 1V7Bq7-0006VT-6b Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] Payment Protocol: BIP 70, 71, 72 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: Wed, 07 Aug 2013 22:04:22 -0000 But the reality is that in many applications you need to provide a single URL. Consider existing point-of-sale systems that display QR codes for the user to scan. They live within the limitations of existing bitcoin URLs, but would no doubt benefit from the payments protocol. It's not realistic for the terminal operator in a retail establishment to have to select which protocol will be used before generating the QR code - so the effect of your proposal is to require lowest common denominator and effectively prevent such systems from using the payments protocol (at least until it is sufficiently ubiquitous that they feel happy to simply require its use). roy On Wed, Aug 07, 2013 at 11:54:44PM +0200, Pieter Wuille wrote: > I see payment URIs rather as a replacement for bitcoin: URI rather > than an extension. It solves everything they did in a much cleaner > way, Given that bitcoin: have gotten some traction, we probably want > to reuse the moniker, but replace the rest entirely. In other words, > if a request is specified, nothing else should be. > > There is just no useful way to combine them either - payments > generalize destinations to arbitrary scripts, messages are handled > inline, amounts are defined inline. And if you want to rely on the > payment infrastructure to work, you cannot risk people using the > old-style static address in the URI. > > > > On Wed, Aug 7, 2013 at 11:47 PM, Roy Badami wrote: > > Very brief comment on BIP 72: > > > > I wonder if there should be some discussion included in the > > specification as to how the BIP 21 amount, message and label > > parameters should be processed when the payment protocol is used. > > > > Presumably amount should be completely ignored? But is the total > > amount requestd by the PaymentRequest required to match the amount > > parameter (when present)? Is the client permitted to complain if they > > don't? > > > > And what about message? Presumably the memo from PaymentDetails > > should take precedence, but if it's not present, and message is? > > > > I think this is an area perhaps more suited to SHOULDs and MAYs rather > > than MUSTs, but it is probably worthy of mention... > > > > roy > > > > ------------------------------------------------------------------------------ > > Get 100% visibility into Java/.NET code with AppDynamics Lite! > > It's a free troubleshooting tool designed for production. > > Get down to code-level detail for bottlenecks, with <2% overhead. > > Download for free and get started troubleshooting in minutes. > > http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk > > _______________________________________________ > > Bitcoin-development mailing list > > Bitcoin-development@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/bitcoin-development >