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   RE: URN Madness (was re: Overloaded URIs must GO!)

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  • From: "Didier PH Martin" <martind@netfolder.com>
  • To: <xml-dev@ic.ac.uk>
  • Date: Sat, 29 May 1999 10:50:12 -0400

Hi Dan,

Dan said:
Would qualifying the DNS name with a date sort this?


If I owned spam.org for a week, I could through my life issue hname URIs
in this form where there date element fell within the period of my

Didier says:
First you don't need to include a DNS domain name in the urn. In fact by
doing so you introduce a location dependant context. URNS should be location
independent. So, your urn should be:


Algorithm to resolve the name into a location:
a) the client connects to a DNS server (this is, in that case the name space
respository - let's say its W3C)
b) the client requests for a particular DNS record which contains a set of
URL attached to a URN.
c) The DNS server send to the client a URL collection attached to the URN
d) the client uses the URL to fetch the document _located_ at the URL.

Didier PH Martin

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