Last Call Review of draft-adid-urn-01
review-adid-urn-01-genart-lc-carpenter-2016-11-24-00

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Document: draft-adid-urn-01.txt
Reviewer: Brian Carpenter
Review Date: 2016-11-24
IETF LC End Date: 2016-12-19
IESG Telechat date:

Summary: Almost ready
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Comment:
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I looked in vain for a shepherd's writeup or even a shepherd. I have no idea whether
this draft has gone through adequate expert review, and I am certainly not an expert.

Major Issues:
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This is an informative document that states "Ad-ID is the industry standard..." but doesn't
provide a clear normative reference to an industry standard at that point. I assume that
would be [SMPTERP2092-1]. If so it should be referenced right there. Unfortunately it's
behind a pay wall (

http://ieeexplore.ieee.org/document/7291518/

). The IESG needs to confirm
whether that's acceptable.

>   An Ad-ID Identifier consists of a unique eleven character string
>   or a unique twelve character string (video codes only).

What's a "character"? ASCII or UTF-8?

The informative reference [Ad-ID-INTRO] doesn't seem to know whether it's a technical
appendix or a reference, and the URL that it cites is unhelpful. The material at


http://www.ad-id.org/how-it-works/ad-id-structure

 seems to be what is needed but
partly duplicates what is in the draft. Maybe this material is only given here because
the actual SMPTE standard costs more than $100? If so, I think it should be clearly
labelled as informational material and that only the SMPTE document is definitive.