Duplios Proof of Evidence Standard v0.1 (Duplios methodology — not an ISO, accredited, or industry-consensus standard). A question is decomposed into evidence requirements. Sources are recorded with independence groups and lineage. Copies that share an origin are one confirmation. Contradiction is searched, not assumed absent. AI output, detector scores, missing EXIF, and missing C2PA credentials are evidence or absences — not truth. evaluateCase returns SUPPORTED, CONTRADICTED, INSUFFICIENT_EVIDENCE, or HUMAN_REVIEW_REQUIRED. UNKNOWN stays UNKNOWN. A report hash identifies the bytes of this version; it does not prove the finding is true.
Decision states are SUPPORTED, CONTRADICTED, INSUFFICIENT EVIDENCE, HUMAN REVIEW REQUIRED. There is no universal truth score.