10 February 2025 (NA/EU)

Attendees

  • Andy Rosen, Sequence Key

  • Brian McInnis, Long Tailed Leopard

  • Christian Paquin, Microsoft

  • Claudiu Cismaru, Adobe

  • Clement Hecquet, Digimarc

  • David Bigsby, Government of British Columbia

  • Eric Scouten, Adobe

  • Gavin Peacock, Adobe

  • Hans Granqvist, Noosphere

  • Jeremy Uzan, Universal Music

  • Luke Nispel, OriginVault

  • Makki Elfatih, HKDolts

  • Nigel Earnshaw, BBC

  • Peleus Uhley, Adobe

  • Philippe Mougin, AFP

  • Philippe Rixhon, JPEG Trust

  • Richard W. Kroon, EIDR

  • Scott Perry, Digital Governance Institute

  • Will Kreth, HAND (Human & Digital) Identity

Meeting notes

Review previous action items

1'01": All action items from previous meetings resulted in PRs that have been merged.

Review PR #211: (Work in progress) Identity claims aggregation validation

1'21": Reviewed PR #211. This was a mostly-complete draft, submitted to the group for feedback on what has been written so far.

Action items:

  • 8'41": ACTION: Revise PR to suggest that validator could pass supplementary error codes in addition to those described by CAWG spec. (For example, "problem details" as described in the W3C VC spec.)

  • 13'39": ACTION: Revise PR to reduce the number of "validator must stop" conditions to the bare minimum. (Same for PR 210.)

  • 22'18": ACTION: Revise PR to avoid repetition of the full set of rules for verifiedIdentities entries.

  • 34'14": ACTION (✅): Eric to call meeting with Scott and David regarding levels of assurance and validation lifetime. (Set for Thursday, 13 February.)

Review PR #210: Introduce new section, “C2PA Manifest validation prerequisites”

38'36": Reviewed PR #210. This PR calls out the C2PA Manifest validation as a prerequisite for identity assertion validation. Adds two new constraints:

  • The C2PA Manifest must now have been found to be valid. (The 1.0 CAWG spec only required well-formed.)

  • The identity assertion must have been found to match the hash reference in the claim data structure.

Action items:

  • 48'59": ACTION: Revise PR to remove the "validator must stop" language if the manifest is not well-formed or if the assertion hash doesn’t match.

Review PR #207: Limit validity period for identity claims verifications

58'27": Reviewed PR #207. No new language as yet, but I’d like to explore the idea from a previous meeting of declaring the lifetime of identity claims verifications.

Next meeting

We will not hold a CAWG meeting next Monday, 17 February.

We will hold both CAWG meetings (NA/EU + APAC) the following Monday, 24 February (Tuesday, 25 February for APAC time zones).