Rūpestėlis Vestigium

{
  "document_id": "MP-JA6F5G5P4EVH",
  "timestamp": "2026-05-15T11:07:08.870467+00:00",
  "asset_type": "synthetic_media_review",
  "sigillum_seal": "VESTIGIUM_EVIDENCE",
  "provenance_data": {
    "case_label": "CEO impersonation case 2026-05-15",
    "vestigium_id": "VST-P8A8VDPHFYDU",
    "signals_extracted": {
      "sha256": "bcbc7a92e9c9f15039c7594e9e761fc4ba596623c67ea40014a9b9ec1fac4e68",
      "size_bytes": 3338,
      "mime_type": "image/jpeg",
      "declared_mime_type": "image/jpeg",
      "exif": {
        "DateTimeOriginal": "2026:05:15 11:00:00",
        "Make": "Canon",
        "Model": "EOS R5",
        "Software": "Final-Smoke-Test",
        "DateTime": "2026:05:15 11:00:00",
        "Copyright": "Rupestelis 2026",
        "Artist": "Smoke Tester"
      },
      "ffprobe": null,
      "pdf_info": null,
      "c2pa_present": false,
      "c2pa_valid": null,
      "c2pa_manifest": null,
      "metadata_stripped": false,
      "timestamp_consistency": "consistent",
      "extraction_errors": []
    },
    "signal_sufficiency_score": 40,
    "evidence_level": "LOW",
    "quarantine_recommendation": {
      "recommend_quarantine": false,
      "rationale": [
        "No C2PA manifest — content provenance cannot be cryptographically verified"
      ],
      "confidence": "medium"
    },
    "operator_judgment": {
      "operator_id": "OP-T3XYI88CUXSJ",
      "operator_tier": "observer",
      "operator_trust_score": "4.0/5",
      "operator_notes": "Camera-originated metadata consistent. No C2PA manifest. Recommend additional context check with original source if disputed.",
      "final_recommendation": "ACCEPT_WITH_CAVEATS"
    },
    "co_creators": [
      {
        "name": "Claude (Anthropic)",
        "model": "claude-opus-4-7",
        "role": "Spec authorship + main code implementation + Sigillum adapter integration"
      },
      {
        "name": "DeepSeek",
        "model": "deepseek-v3",
        "role": "Constitutional governance gap answers (GAP_ANSWERS_v1.md) + AIST test cases (40 cases)"
      },
      {
        "name": "Grok (xAI)",
        "model": "grok-4",
        "role": "Cross-AI peer review (Concord v0.1) — adversarial scenario audit"
      },
      {
        "name": "GPT (OpenAI)",
        "model": "gpt-5",
        "role": "AIIS v0.9 working code coordination + Sigillum infrastructure cross-check"
      },
      {
        "name": "Tomas Margelis",
        "model": "human",
        "role": "Founding direction + Constitution v1.2 authorship + civic-tech framing + product decisions"
      }
    ],
    "limitations": [
      "Phase 1 MVP performs metadata + provenance extraction, NOT ML-based deepfake detection",
      "Single human operator review (no peer-review by second operator in Tier 1 pilots)",
      "C2PA validation depends on certificate authority trust chain at moment of verification",
      "Heuristics calibrated for camera-originated media; synthetic-from-scratch artifacts may not trigger known red flags",
      "No audio voice-cloning analysis (Phase 2 scope)"
    ]
  },
  "cryptographic_hash": "e574f6b576e06887992a3a1af5ad3c2460d59f313b62a050f05ea24e4d2234f9",
  "ed25519_signature": "Eb5KYjele5Co/f+VauBx7gVH4oPKH9hikge0xSWmhApgMd4zweGpGtikUswJ5mrqJMumQvhho03ddDNF/J7qBw==",
  "parent_seal_id": "",
  "signer_id": "rupestelis_holding_uab",
  "signed_at": "2026-05-15T11:07:08.870467+00:00",
  "verification_url": "https://verify.rupestelis.com/vestigium/MP-JA6F5G5P4EVH"
}