[1] BIP 0021 - Bitcoin ( (2013-04-24 08:04:27 +09:00 版)) https://en.bitcoin.it/wiki/BIP_0021

[2] Web Applications 1.0 r7850 Add bitcoin: to the URL scheme whitelist, by request. It's more or less like mailto:. ( (2013-04-24 06:08:00 +09:00 版)) http://html5.org/tools/web-apps-tracker?from=7849&to=7850