<oembed><type>rich</type><version>1.0</version><author_name>npub1kf0ppcjaguxekg24yx6smgxlu73qn0k8lm0t2wrqc0scpl7u3sgsmf3f58</author_name><author_url>https://nostr.ae/npub1kf0ppcjaguxekg24yx6smgxlu73qn0k8lm0t2wrqc0scpl7u3sgsmf3f58</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>📅 Original date posted:2014-03-20&#xA;📝 Original message:Take a look at BIP 73:&#xA;https://github.com/bitcoin/bips/blob/master/bip-0073.mediawiki&#xA;&#xA;&#xA;&#xA;&#xA;On Wed, Mar 19, 2014 at 10:22 PM, Alex Kotenko &lt;alexykot at gmail.com&gt; wrote:&#xA;&#xA;&gt; Hi Andreas&#xA;&gt;&#xA;&gt;&#xA;&gt; I&#39;m implementing support for BIP70 in my POS at the moment, and I&#39;ve just&#xA;&gt; realized that with options you&#39;re proposing usecase I&#39;m looking for is not&#xA;&gt; covered.&#xA;&gt;&#xA;&gt; Right now, before BIP70, I&#39;m sending BIP21 URI via NFC or QR code, and I&#xA;&gt; need to still be able to use it for backwards compatibility. But at the&#xA;&gt; same time I want to be able to support BIP70. And also I want to avoid&#xA;&gt; using external servers, the concept of my POS is that everything is&#xA;&gt; happening between just payer&#39;s phone and payee&#39;s POS device. This means&#xA;&gt; that BIP72 HTTP(S) link inside Bitcoin URI is not suitable for me.&#xA;&gt;&#xA;&gt; You&#39;re also offering an option to include Base43 encoded PR body right&#xA;&gt; inside the Bitcoin URI, but in a way that is not backwards compatible with&#xA;&gt; BIP21.&#xA;&gt;&#xA;&gt; In the end this all means that there is no way for me to at the same time&#xA;&gt; keep backwards compatibility with all wallets not supporting NFC and BIP70&#xA;&gt; (all other wallets right now), and keep things inside POS without need for&#xA;&gt; external servers.&#xA;&gt;&#xA;&gt; I understand your intention behind base43 encoding and noncompatible URI -&#xA;&gt; you want to make most possible use of QR codes. But I wonder - did you&#xA;&gt; compare this base43 to base64 encoded request in a binary QR code format?&#xA;&gt; How much do we actually win in total bytes capacity at a price of&#xA;&gt; noncompatibility and increased complexity?&#xA;&gt;&#xA;&gt; And also maybe we can extend BIP72 to include encoded payment request in&#xA;&gt; the URL directly in a backwards compatible way?&#xA;&gt;&#xA;&gt;&#xA;&gt; Best regards,&#xA;&gt; Alex Kotenko&#xA;&gt;&#xA;&gt;&#xA;&gt; 2014-03-02 11:50 GMT+00:00 Mike Hearn &lt;mike at plan99.net&gt;:&#xA;&gt;&#xA;&gt;&gt;  Thanks Andreas.&#xA;&gt;&gt;&#xA;&gt;&gt; For BIP standardisation, I think the VIEW intent seems like an obvious&#xA;&gt;&gt; one. Bluetooth support probably should come later if/when we put&#xA;&gt;&gt; encryption/auth on the RFCOMM link (probably SSL).&#xA;&gt;&gt;&#xA;&gt;&gt;&#xA;&gt;&gt; ------------------------------------------------------------------------------&#xA;&gt;&gt; Flow-based real-time traffic analytics software. Cisco certified tool.&#xA;&gt;&gt; Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer&#xA;&gt;&gt; Customize your own dashboards, set traffic alerts and generate reports.&#xA;&gt;&gt; Network behavioral analysis &amp; security monitoring. All-in-one tool.&#xA;&gt;&gt;&#xA;&gt;&gt; http://pubads.g.doubleclick.net/gampad/clk?id=126839071&amp;iu=/4140/ostg.clktrk&#xA;&gt;&gt;&#xA;&gt;&gt; _______________________________________________&#xA;&gt;&gt; Bitcoin-development mailing list&#xA;&gt;&gt; Bitcoin-development at lists.sourceforge.net&#xA;&gt;&gt; https://lists.sourceforge.net/lists/listinfo/bitcoin-development&#xA;&gt;&gt;&#xA;&gt;&gt;&#xA;&gt;&#xA;&gt;&#xA;&gt; ------------------------------------------------------------------------------&#xA;&gt; Learn Graph Databases - Download FREE O&#39;Reilly Book&#xA;&gt; &#34;Graph Databases&#34; is the definitive new guide to graph databases and their&#xA;&gt; applications. Written by three acclaimed leaders in the field,&#xA;&gt; this first edition is now available. Download your free book today!&#xA;&gt; http://p.sf.net/sfu/13534_NeoTech&#xA;&gt; _______________________________________________&#xA;&gt; Bitcoin-development mailing list&#xA;&gt; Bitcoin-development at lists.sourceforge.net&#xA;&gt; https://lists.sourceforge.net/lists/listinfo/bitcoin-development&#xA;&gt;&#xA;&gt;&#xA;&#xA;&#xA;-- &#xA;Jeff Garzik&#xA;Bitcoin core developer and open source evangelist&#xA;BitPay, Inc.      https://bitpay.com/&#xA;-------------- next part --------------&#xA;An HTML attachment was scrubbed...&#xA;URL: &lt;http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20140319/d93fa9b0/attachment.html&gt;</html></oembed>