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      "artifact_sha256": "3f00a0a003518c38bf56f0948c6ab988cf6b50c070c9900787cc083402fb8729",
      "checks": {
        "file_exists": true,
        "hash_matches_record": true,
        "file_decodes": true,
        "duration_at_most_10_seconds": true,
        "aspect_16_by_9": true,
        "audio_policy": true,
        "exact_overlay_text": null,
        "required_visible_elements": null,
        "forbidden_claims": null
      },
      "measurements": {
        "duration_seconds": 8.041667,
        "width": 1920,
        "height": 1080,
        "audio_streams": 0
      },
      "errors": [],
      "scope": "local file metadata and decode probe only; no OCR, visual judging, or provider call",
      "id": "attempt-009",
      "cohort": "B",
      "evidence_type": "historical_raw_artifact_recheck",
      "workflow_id": "kling-v3-pro",
      "brief_id": "invoice-three-shot",
      "endpoint_id": "fal-ai/kling-video/v3/pro/text-to-video",
      "replicate": 1,
      "technical_pass": true,
      "historical_recorded_provider_consumption_usd": "0.896",
      "billing_source": "fal Usage details, exact request ID, observed after provider completion",
      "historical_generation_observed_at": "2026-09-24T05:11:52.228914Z",
      "new_provider_consumption_usd": "0.00",
      "human_acceptance": null,
      "human_editing_minutes": null,
      "cost_per_accepted_ad_usd": null,
      "finished_deliverable": false,
      "finished_deliverable_note": "Retained raw provider clip; required final overlay/narration work is incomplete.",
      "started_at_utc": "2026-09-24T18:46:41.198551+00:00",
      "completed_at_utc": "2026-09-24T18:46:41.348663+00:00",
      "check_seconds": 0.15
    },
    {
      "artifact_path": "creative-originals/attempt-010-original.mp4",
      "artifact_sha256": "798a6ef7e79787088f1c78c7ef4dc32fa618606d006d3f3c3a4a7e8a8695b913",
      "checks": {
        "file_exists": true,
        "hash_matches_record": true,
        "file_decodes": true,
        "duration_at_most_10_seconds": true,
        "aspect_16_by_9": true,
        "audio_policy": true,
        "exact_overlay_text": null,
        "required_visible_elements": null,
        "forbidden_claims": null
      },
      "measurements": {
        "duration_seconds": 8.041667,
        "width": 1280,
        "height": 720,
        "audio_streams": 0
      },
      "errors": [],
      "scope": "local file metadata and decode probe only; no OCR, visual judging, or provider call",
      "id": "attempt-010",
      "cohort": "B",
      "evidence_type": "historical_raw_artifact_recheck",
      "workflow_id": "kling-o3-image",
      "brief_id": "invoice-three-shot",
      "endpoint_id": "fal-ai/kling-video/o3/standard/image-to-video",
      "replicate": 2,
      "technical_pass": true,
      "historical_recorded_provider_consumption_usd": "0.672",
      "billing_source": "fal Usage details, exact request ID, observed after provider completion",
      "historical_generation_observed_at": "2026-09-24T06:11:58.775644Z",
      "new_provider_consumption_usd": "0.00",
      "human_acceptance": null,
      "human_editing_minutes": null,
      "cost_per_accepted_ad_usd": null,
      "finished_deliverable": false,
      "finished_deliverable_note": "Retained raw provider clip; required final overlay/narration work is incomplete.",
      "started_at_utc": "2026-09-24T18:46:41.349181+00:00",
      "completed_at_utc": "2026-09-24T18:46:41.436024+00:00",
      "check_seconds": 0.087
    },
    {
      "artifact_path": "creative-originals/attempt-011-original.mp4",
      "artifact_sha256": "463475c799c381670d3c368973c8bcea8fdaf3519fbfe47974026c93c392cb89",
      "checks": {
        "file_exists": true,
        "hash_matches_record": true,
        "file_decodes": true,
        "duration_at_most_10_seconds": true,
        "aspect_16_by_9": true,
        "audio_policy": true,
        "exact_overlay_text": null,
        "required_visible_elements": null,
        "forbidden_claims": null
      },
      "measurements": {
        "duration_seconds": 8.0,
        "width": 1280,
        "height": 720,
        "audio_streams": 0
      },
      "errors": [],
      "scope": "local file metadata and decode probe only; no OCR, visual judging, or provider call",
      "id": "attempt-011",
      "cohort": "B",
      "evidence_type": "historical_raw_artifact_recheck",
      "workflow_id": "veo-fast",
      "brief_id": "invoice-three-shot",
      "endpoint_id": "fal-ai/veo3.1/fast",
      "replicate": 2,
      "technical_pass": true,
      "historical_recorded_provider_consumption_usd": "0.79992",
      "billing_source": "fal Request History details, exact request ID, observed after provider completion",
      "historical_generation_observed_at": "2026-09-24T17:43:49.063765Z",
      "new_provider_consumption_usd": "0.00",
      "human_acceptance": null,
      "human_editing_minutes": null,
      "cost_per_accepted_ad_usd": null,
      "finished_deliverable": false,
      "finished_deliverable_note": "Retained raw provider clip; required final overlay/narration work is incomplete.",
      "started_at_utc": "2026-09-24T18:46:41.436529+00:00",
      "completed_at_utc": "2026-09-24T18:46:41.516138+00:00",
      "check_seconds": 0.08
    }
  ],
  "summary": {
    "baseline_exports": 3,
    "baseline_technical_passes": 3,
    "historical_raw_clips_rechecked": 11,
    "historical_raw_technical_passes": 11,
    "historical_recorded_provider_consumption_usd": "8.54384",
    "new_paid_requests": 0,
    "new_provider_consumption_usd": "0.00",
    "human_acceptance_decisions": 0,
    "human_editing_minutes": null,
    "cost_per_accepted_ad_usd": null,
    "original_human_cohort_completed_sessions": 0
  },
  "limits": [
    "Different cohorts have different tasks, aspect ratios and durations; do not combine their pass rates.",
    "Technical pass is not creative or human acceptance.",
    "The source Creative Work Lab design is incomplete; no provider ranking.",
    "Previously recorded billing observations were not rechecked in a provider account.",
    "Original 27-session human protocol and ledger unchanged."
  ]
}