{
  "case_id": "TC_VALID_001_ROOT_HELD",
  "expected": "PASS",
  "reason": "Root capsule has required fields, fixed root_trace_id, HELD loop_state, and source_return_path present.",
  "data": {
    "trace_capsule_v": "0.1",
    "trace_id": "tc_root_001",
    "root_trace_id": "source_credential_001",
    "attached_to": "ai_summary",
    "credential_state": "present",
    "claim_boundary": "Summary reflects the credentialed source content; it does not verify broader claims.",
    "loop_state": "HELD",
    "review_status": "unreviewed",
    "source_return_state": "present",
    "source_return_path": "c2pa_manifest_or_source_pointer",
    "uncertainty_state": "low",
    "unsupported_inferences": []
  }
}