{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:hms:provenance:v2:c2pa-assertion",
  "title": "HMS C2PA memory digest assertion v2",
  "type": "object",
  "required": ["profile", "memoryDigestAlg", "memoryDigest"],
  "properties": {
    "profile": {"const": "urn:hms:provenance:v2"},
    "memoryDigestAlg": {"const": "sha256"},
    "memoryDigest": {"type": "string", "pattern": "^[0-9a-f]{64}$"}
  },
  "additionalProperties": false
}