URNEdit

A URN or Uniform Resource Name is a special subclass of URI. For example, a book’s ISBN number can be written as a URN like urn:isbn:0451450523.

See also

• Wikipedia article on URNs: http://en.wikipedia.org/wiki/Uniform_Resource_Name

Related RFCs

• RFC 1737 ("Functional Requirements for Uniform Resource Names")
• RFC 2141 ("URN Syntax")
• RFC 3986 ("Uniform Resource Identifier (URI): Generic Syntax")