13 October 2025

Attendees

  • Andrea van Arkel, European Signature Dialog

  • Andrew Dworschak, Yakoa

  • Charlie Halford, BBC

  • Enrico Entschew, D-Trust

  • Eric Scouten, Adobe

  • Erik Passoja, SAG/AFTRA

  • Felix von Rosenberg, D-Trust

  • Howie Singer, RIAA

  • Judith Fleenor

  • Makki Elfatih, HKDolts

  • Nigel Earnshaw, BBC

  • Peleus Uhley, Adobe

  • Philippe Mougin, AFP

  • Richard W. Kroon, EIDR

  • Scott Perry, Digital Governance Institute

  • Tom Jones

  • Urayoan Camacho, DTI (Digital Trust International)

  • Utkarsh Sharma, Vlinder

  • Victor Grey, JLINC

  • Will Kreth, HAND (Human & Digital) Identity

European Signature Dialog introduction

🎥 8'29": Scott invited several guests from European Signature Dialog to join today’s meeting. Generally speaking, these represent EU qualified signature providers (CAs) who are interested in supporting European content creators' efforts to sign CAWG identity assertions.

New members introduction

  • 🎥 9'52": Judith Fleenor

  • 🎥 11'07": Andrea van Arkel, European Signature Dialog

  • 🎥 12'36": Enrico Entschew, D-Trust

  • 🎥 13'32": Felix von Rosenberg, D-Trust

  • 🎥 14'21": Urayoan Camacho, DTI (Digital Trust International)

  • 🎥 15'25": Utkarsh Sharma, Vlinder

Review of CAWG purpose

🎥 16'37": Eric gave a quick recap of the group’s purpose and work to date.

Review previous action items

🎥 19'40": Skipped review of action items. Status summarized here:

  • ACTION: Eric to reach out to Wenjing and other ToIP members to build tighter collaboration on agentic identity. → UNDERWAY. No new developments. (We’ll talk at IIW.)

  • ACTION: Eric to explore promotional video ideas. → UNDERWAY. Working with Adobe team to build a new 1-2 minute video that we can use on site. ETA late September.

  • ACTION: Andrew to propose updating examples in remainder of metadata asertion spec to match this suggested usage.

  • ACTION: Eric to revise wording to encourage use of human-language and URN-based identifiers. → DONE (See commit fea4dc.)

  • ACTION: Drummond and Andrew to meet to ensure that FPP and CAWG VC efforts are technically aligned.

Review identity assertion PR #240: Add X.509 trust model guidance

🎥 20'13": Discussed identity assertion PR #240: Add X.509 trust model guidance.

This PR proposes a trust model for X.509 certificates, which is important to making the identity assertion usable and interoperable in practice. The proposed interim trust model leverages existing S/MIME email signature infrastructure with a validity window until March 2027 during which time a certificate governance program more appropriate to content signing will be developed.

ACTIONS: Some edits were requested by the group:

  • 🎥 30'18": Scott and Charlie to explore options for broadening the time stamp authority requirements beyond the set of CAs specifically allowed by the C2PA. → IN PROGRESS (See issue 242.)

  • 🎥 33'25": Scott to elaborate on the criteria for inclusion of roots of trust in the CAWG-mandated trust configuration.

  • 🎥 40'42": Eric to replace “CAWG trust list” name with “CAWG trust configuration.”

  • 🎥 43'10": Eric to revise wording around “must accept certificate” to something like “must treat as trusted.”

  • 🎥 1h04'06": Richard to explore options for recognizing industry sector statements as extended metadata in X.509 certificates.

🎥 50'38": Discussed identity assertion PR #241: Add guidance for display of named actor logo.

🎥 53'26": ACTION: Eric to incorporate feedback from Charlie suggesting that a validator should only display a logo when a certificate is deemed trusted.

Invitation: Media identifiers TF subgroup meeting

🎥 1h05'04": Invitation to join subgroup working on last-minute edits to proposed section 6 of metadata assertion and how this group interacts with the forthcoming work of the JPEG Trust initiative. Group will be meeting next three Wednesdays at 8am Pacific. Contact Erik Passoja for details.

Reminder: CAWG Slack channel

🎥 1h08'02": Reminder that there is a CAWG-specific Slack channel on the DIF Slack. Contact Eric Scouten for details.