[urn] Re: General grumble about incorporating other identifi ers into URNs

On 3/9/26 5:51 PM, John C Klensin wrote:

> And that brings me to the next question: do you think whatever needs
> to be done can be done informally, maybe with a note on the registry,
> or do we need to rethink/rework parts of 8141?  Peter and others on
> the Expert team?

Personally, I don't yet have clear ideas on what needs to be done, but 
it's worth thinking about. Dale mentioned extra vigilance, and that's a 
good place to start.

One straightforward consideration that comes to mind is making sure that 
the registrants for these "incorporating URN namespaces" have 
coordinated with those who originally defined the identifier systems to 
be incorporated (as I did when quizzing Olle as to whether he and other 
TC54 participants had talked with the LEI folks).

Another consideration is understanding both change control and the 
assignment process for the underlying identifier systems. As I 
understand it, one of the "interesting" aspects of the ISBN story was 
the change in the number of digits. We were fortunate that you were 
involved from the ISO side, but if that had not been the case then 
something like the URN namespaces review team (which at that time didn't 
exist in its current form) might have naïvely assumed that all would be 
well with future versions.

Peter

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