Glossary

C2PA

C2PA is a content provenance standard used to attach authenticity and editing history information to media assets.

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Coverage

Text, images, audio, video, and code in one product.

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A web checker for direct use and an API for integrations.

Interpretation

Probabilistic evidence that should be reviewed with source context.

Definition

C2PA is a content provenance standard used to attach authenticity and editing history information to media assets.

  • Signed provenance metadata
  • Content credentials
  • Camera and editing history
  • Tamper-evident media records

Why it matters for detection

C2PA affects how teams interpret evidence, route review decisions, and explain authenticity findings to users or stakeholders.

  • It can change which signals are reliable.
  • It often requires context outside the media file.
  • It should be represented clearly in review reports.

Related concepts

Synthetic media detection is strongest when glossary concepts are connected to concrete review workflows.

  • Confidence scoring
  • Provenance and metadata
  • Human review and appeals

Common use cases

Reviewer training

Policy documentation

Technical onboarding for authenticity workflows

Methodology and limitations

How to read a result

Detection output is probabilistic evidence. A high score means the observed signals are consistent with synthetic or manipulated content under the current model and sample conditions. It does not prove authorship or intent.

When review is required

Short samples, heavy editing, compression, translation, re-recording, mixed human and AI content, and new generators can reduce confidence. Use human review before high-impact decisions.

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Frequently asked questions

Is c2pa always malicious?

No. Many synthetic media techniques have legitimate uses. Risk depends on disclosure, consent, context, and downstream harm.

How does ZeroTrue use this concept?

ZeroTrue connects glossary concepts to evidence in detection reports so reviewers can understand why a signal matters.

Why include glossary pages?

They help users, search engines, and AI answer systems understand the domain vocabulary around authenticity and synthetic media.