An action requiring an ingredient reference does not have one (§18.15.4.7)
BMFF hash assertion or Merkle structure is malformed (§15.2.2.3)
BMFF content hash does not match the committed value (§15.2.2.3)
Assertion hash does not match the hashed URI in the claim (§15.10.3.1)
An assertion referenced in the claim is missing from the assertion store (§15.10.3.1)
Claim signature verification failed (§15.7)
Standard C2PA validation status codes for manifest integrity checks, as defined in the C2PA specification chapters 15 and 18.
See
C2PA Spec §15.10.3