2014-03-20 17:31 GMT+00:00 Jeff Garzik : > On Thu, Mar 20, 2014 at 8:12 AM, Adam Back wrote: > > Whats a sensible limit on practical/convenient QR code size? > > Extremely limited. Preferably under 100 bytes. You will see > increasingly poor operating in varying light conditions, such as > paying via QR code on a printed receipt in a pub at night. That was > one of the motivations for BIP 73. > ​Hmm, in this case I think base43 discussion is irrelevant. Even with best space utilization we can get ​we will not be able to fit in anything bigger than a smallest unsigned payment certificate. And that is not so useful. So probably we should stick with BIP73 approach and bluetooth URI scheme we're inventing. > > > On Thu, Mar 20, 2014 at 4:09 AM, Andreas Schildbach > wrote: > > Afaik, BIP73 needs an external server (the web server). > > Yes. Internet connectivity is not a rarity these days. Near-field > web servers also work fine. > > -- > Jeff Garzik > Bitcoin core developer and open source evangelist > BitPay, Inc. https://bitpay.com/ > > > ------------------------------------------------------------------------------ > Learn Graph Databases - Download FREE O'Reilly Book > "Graph Databases" is the definitive new guide to graph databases and their > applications. Written by three acclaimed leaders in the field, > this first edition is now available. Download your free book today! > http://p.sf.net/sfu/13534_NeoTech > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development >