{
  "evidence_level": "camera_like",
  "summary": "The image has camera-like supporting evidence and no strong AI provenance marker was detected.",
  "signal_matrix": [
    {
      "signal": "Provenance",
      "status": "Not Detected",
      "strength": "no_provenance_signal",
      "notes": "No provenance marker detected."
    },
    {
      "signal": "Byte Markers",
      "status": "Not Detected",
      "strength": 0,
      "notes": "Raw file marker scan; strings can be injected or stripped."
    },
    {
      "signal": "C2PA Verification",
      "status": "Not Detected",
      "strength": "absent",
      "notes": "No C2PA manifest was verified."
    },
    {
      "signal": "Camera Evidence",
      "status": "Supportive Only",
      "strength": 0.17513650232190198,
      "notes": "camera_like_jpeg"
    },
    {
      "signal": "Frequency Evidence",
      "status": "Above Reference Threshold",
      "strength": 0.8292616000105508,
      "reference": 0.7418555425813717,
      "notes": "Threshold-relative forensic signal only."
    }
  ],
  "provenance_evidence": {
    "has_c2pa_marker": false,
    "has_xmp_marker": false,
    "has_trained_algorithmic_media": false,
    "has_openai_media_service": false,
    "has_google_media_service": false,
    "has_synthid_marker": false,
    "exif_present": false,
    "exif_make": "",
    "exif_model": "",
    "exif_software": "",
    "ai_origin_hint": "none",
    "c2pa_verification_status": "absent",
    "c2pa_verifier": "none",
    "c2pa_verification_detail": "",
    "c2pa_verification": {
      "presence": "absent",
      "manifest_status": "absent",
      "signature_status": "absent",
      "trust_status": "not_applicable",
      "asset_binding_status": "not_applicable",
      "ingredient_status": "absent",
      "signer": "",
      "claim_generator": "",
      "validation_errors": [],
      "validation_warnings": [],
      "verifier_name": "none",
      "verifier_version": "",
      "legacy_status": "absent",
      "detail": ""
    },
    "evidence_label": "no_provenance_signal",
    "status": "Not Detected",
    "has_ai_marker": false,
    "is_verified_openai": false
  },
  "byte_marker_evidence": {
    "path": "inputs/camera-02.jpg",
    "file_size": 48506,
    "has_openai_marker": false,
    "has_c2pa_marker": false,
    "has_xmp_marker": false,
    "has_trained_algorithmic_media": false,
    "has_synthid_marker": false,
    "matches": [],
    "status": "Not Detected"
  },
  "c2pa_verification_status": "absent",
  "c2pa_verification": {
    "presence": "absent",
    "manifest_status": "absent",
    "signature_status": "absent",
    "trust_status": "not_applicable",
    "asset_binding_status": "not_applicable",
    "ingredient_status": "absent",
    "signer": "",
    "claim_generator": "",
    "validation_errors": [],
    "validation_warnings": [],
    "verifier_name": "none",
    "verifier_version": "",
    "legacy_status": "absent",
    "detail": ""
  },
  "camera_evidence": {
    "exif_present": false,
    "exif_make": "",
    "exif_model": "",
    "exif_software": "",
    "jpeg_quantization_present": true,
    "jpeg_quantization_tables": 2,
    "jpeg_subsampling": "((2, 2), (1, 1), (1, 1))",
    "jpeg_luma_quant_mean": 9.25,
    "jpeg_chroma_quant_mean": 13.921875,
    "residual_noise_score": 0.01369733952507191,
    "cfa_grid_score": 0.0,
    "formation_score": 0.25136502321901966,
    "camera_score": 0.17513650232190198,
    "evidence_label": "camera_like_jpeg",
    "status": "Supportive Only"
  },
  "frequency_evidence": {
    "status": "Above Reference Threshold",
    "score_name": "composite_score",
    "score": 0.8292616000105508,
    "reference_threshold": 0.7418555425813717,
    "features": {
      "fft_grid_score": 1.9893027045618976,
      "fft_peak_score": 1.9262667401151428,
      "fft_high_energy_ratio": 0.9089288454726304,
      "dct_mid_high_ratio": 0.6730709007395893,
      "dwt_hh_energy": 0.09262487014356191,
      "composite_score": 0.8292616000105508
    },
    "note": "Frequency scores are threshold-relative research signals, not probabilities."
  },
  "risk_notes": [
    "This report is an evidence checklist, not a definitive AI detector.",
    "Metadata and raw byte markers can be stripped, copied, or injected.",
    "No C2PA manifest was verified. This is absence of provenance, not proof of manipulation.",
    "No raw byte marker was found, but missing metadata does not rule out AI generation.",
    "Frequency evidence is above the reference threshold but remains supportive only.",
    "Camera-like evidence is supportive formation evidence, not proof that the image is real."
  ],
  "disclaimers": [
    "OpenAI/C2PA markers do not mean the signature has been verified.",
    "Missing metadata does not mean the image is not AI-generated.",
    "Frequency scores are not probabilities and are not legal attribution."
  ]
}