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URNs always require a Shannonesque coding agreement. URLs
require a physical (in the sense a digital message is physical)
representation.
Identity is assigned and then, maintained.
len
-----Original Message-----
From: Steven Livingstone [mailto:s.livingstone@btinternet.com]
Of course this won't always be the case. What would URN:car do? I would
guess not a lot, but how would we know when it does and doesn't return a
pointer to something physical? ISBN might return a URL, but it also
represents non-url things - i.e. a physical book.
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