I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at < http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. 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 -------- Comment: -------- 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: ------------- 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.