Re: URN namespace

Larry Masinter (
Wed, 16 Aug 1995 15:45:25 PDT

In-Reply-To:'s message of Wed, 16 Aug 1995 13:56:16 -0700 <>
Subject: Re: URN namespace
From: Larry Masinter <>
Message-Id: <>
Date: Wed, 16 Aug 1995 15:45:25 PDT

Any naming system that uses current DNS domains and expects long term
persistence also requires at least a low-frequency time stamp, because
current DNS domains are not guaranteed long term persistence.

I think 'year' is good enough, but 'year and month' might be better.

    1993 documentID

Note punctuation elided. If year=currentyear, use DNS, otherwise use
some other service.

> Does ease (or difficulty) of creating and extending the name space
> affect persistence?  If it is easy to create a naming authority, will
. this work against persistence?

I think the key element isn't 'ease of creating' but 'frequency of
reassignment'. We should all have heard of the cases of '' and
'' and '' already, right?