Verifying Provenance of Digital Media: Why the C2PA Specifications Fall Short. - Enis Golaszewski; Neal Krawetz; Alan T. Sherman; Edward Zieglar; Sai K. Matukumalli; Roberto Yus; Carson L. Kegley; Michael Barthel; William Bowman; Bharg Barot; Kaur Kullman (CoRR, 2026)