(last updated 2012年09月23日)
Resource Identifier (RI) Scheme name: bitcoin 
Status: provisional
Scheme syntax:
 bitcoin:<address>[?[amount=<size>][&][label=<label>][&][message=<message>]]
Scheme semantics:
 Send money to a Bitcoin address
Encoding considerations:
 Unknown, use with care.
Applications/protocols that use this scheme name:
Interoperability considerations:
 Unknown, use with care. 
 May be unsuitable for open use on the public internet.
Security considerations:
 Unknown, use with care.
 This scheme claims to be used to send money, which implies a commitment
 by the client user; as described is not clear that this scheme does not
 violate the web principle of safe interactions
 (http://www.w3.org/TR/webarch/#safe-interaction). In the absence of more
 details, it should be considered very dangerous to dereference a bitcoin
 URI.
Contact:
 Registering party: Dave Thaler <dthaler&microsoft.com>
 Scheme creator: Bitcoin URI Scheme
Author/Change controller:
 Either the registering party or someone who is verified to represent
 the scheme creator. See previous answer.
References:
 http://en.wikipedia.org/wiki/Bitcoin, https://en.bitcoin.it/wiki/BIP_0021 
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