{
  "clip_id": "sample_08_primer_and_painting",
  "video_file": "sample_08_primer_and_painting.mp4",
  "environment": "repair_shop",
  "task": "Auto body \u2014 primer prep and painting",
  "duration_seconds": 300.033,
  "fps": 30,
  "resolution": "2560x1440",
  "codec": "h264",
  "camera_view": "monocular_egocentric",
  "capture_device": "Samsung Galaxy S24",
  "manipulator_details": {
    "hand_used": "left_dominant",
    "left_hand_pct": 39.04,
    "right_hand_pct": 22.35,
    "two_hands_pct": 5.94,
    "object_target": "mixing_stick",
    "hands_visible_pct": 55.46
  },
  "anonymization": {
    "identifiable_faces_present": false,
    "face_blur_required": false,
    "face_blur_applied": false,
    "face_privacy_review": "manual_pass",
    "face_privacy_note": "Human review confirmed no identifiable faces in delivered frames; pixel blur not required.",
    "audio_removed": true,
    "pii_scanned": true,
    "notes": "No identifiable faces in frame during review; audio stripped from deliverable. Human review confirmed no identifiable faces in delivered frames; pixel blur not required."
  },
  "consent_signed": true,
  "consent_reference": "consent/worker_consent_summary.md",
  "annotations": {
    "action_segment_count": 21,
    "caption": "Worker prepares automotive paint outdoors: stirs tin components with a steel mixing stick, pours and blends into plastic containers, strains the mixture through muslin into a spray-gun cup, tests the gun, then spray-paints horizontal strokes on two adjacent car door panels.",
    "hand_keypoints_jsonl": "sample_08_primer_and_painting_hand_keypoints.jsonl",
    "hand_keypoints_frames": 8996,
    "hand_pose_label": "estimated_2d"
  },
  "qa_flags": {
    "continuous_integration_qa_pass": true,
    "resolution_verified": true,
    "duration_alignment_verified": true,
    "schema_validated": true,
    "audio_stripped": true,
    "ptp_synchronized": "not_applicable",
    "hand_object_occlusion_logged": true
  },
  "integrity": {
    "sha256_video": "f293d22fc8eda2482fbae1547b20afe87ca1984b1bc8194cea86f3955999240e",
    "sha256_overlay": "e95562fc8fcd5617798a98c9ee5959e6457754a53eeb5fe4b6a08ed44d49b1c7"
  },
  "hand_object_contact": {
    "frames_sampled": 460,
    "contact_frames": 133,
    "contact_rate_pct": 28.91,
    "hand_object_occlusion_logged": true
  },
  "session": {
    "session_id": "GGN_20260620_S08",
    "capture_date": "2026-06-20",
    "timezone": "Asia/Kolkata",
    "collector_id": "WRK_851183",
    "clips_in_session": 1,
    "indoor_outdoor": "outdoor",
    "lighting": "natural",
    "mount_type": "head_mounted_via_headband_egocentric",
    "task_id": "primer_and_painting",
    "time_reference": "clip_start",
    "utc_available": true,
    "utc_note": "Wall-clock start approximated for robotics fusion (minute resolution, 12:00-17:00 IST window); not embedded in deliverable MP4. Clip-relative timestamps remain authoritative.",
    "utc_precision": "minute_approximate",
    "capture_start_ist_approx": "2026-06-20T16:00:00+05:30",
    "capture_start_utc_approx": "2026-06-20T10:30:00Z"
  },
  "task_id": "primer_and_painting"
}