Proof of Evidence answers a question with one of four states: SUPPORTED, CONTRADICTED, INSUFFICIENT EVIDENCE, or HUMAN REVIEW REQUIRED. A question is split into evidence requirements. Sources are recorded with independence and lineage. Copies that share an origin count as one confirmation. Contradiction is searched, not assumed absent. AI scores, missing EXIF, and missing C2PA are clues or absences — not a verdict. UNKNOWN stays UNKNOWN. A report hash identifies this version's bytes; it does not prove the finding is true.
Internal precision labels (established, supported, inferred, unknown) are not a customer score and not a percentage of truth.