Managed C2PA Signing for Publishing Teams

Proof of Publish provides a C2PA signing service for supported assets in publishing and corporate communications workflows. Signing binds a credential to the asset with a tamper-evident signature, timestamp evidence, and customer-supplied assertions.

Teams can evaluate browser workflows, connect WordPress, or use the REST API for custom systems. Verification can check whether an asset still matches its credential and inspect the signed assertions that the credential contains.

The service does not prove identity, authorship, origin, truth, first publication, or legal compliance, and it does not make an article C2PA-certified. Attribution and AI-use statements remain supplied metadata rather than independent identity claims.