{
  "clip_id": "sample_02_industrial_sewing_machine",
  "video_file": "sample_02_industrial_sewing_machine.mp4",
  "environment": "factory",
  "task": "Industrial sewing \u2014 cloth alignment, machine stitching",
  "duration_seconds": 342.967,
  "fps": 30,
  "resolution": "1080x1920",
  "codec": "h264",
  "camera_view": "monocular_egocentric",
  "capture_device": "Samsung Galaxy S24",
  "manipulator_details": {
    "hand_used": "right_dominant",
    "left_hand_pct": 17.33,
    "right_hand_pct": 44.15,
    "two_hands_pct": 7.1,
    "object_target": "garment",
    "hands_visible_pct": 54.38
  },
  "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": 24,
    "caption": "Worker sews sizing straps and stickers onto T-shirts at an industrial sewing machine: picks garment from lot, aligns under needle bar, folds and attaches cloth strips from the right, stitches sizing markers, trims with thread cutter or scissors, sets finished pieces aside, repeats cycle.",
    "hand_keypoints_jsonl": "sample_02_industrial_sewing_machine_hand_keypoints.jsonl",
    "hand_keypoints_frames": 10285,
    "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": "d8b3f09906c5d8fc3755c779713e1285525404bc4b38a7e3cfb8887e9d116ca6",
    "sha256_overlay": "d9af3bb7f48a471bdac35bde5cd91915a9aebf23ef883bdd5c58d322cbf1f2cb"
  },
  "hand_object_contact": {
    "frames_sampled": 841,
    "contact_frames": 105,
    "contact_rate_pct": 12.49,
    "hand_object_occlusion_logged": true
  },
  "session": {
    "session_id": "GGN_20260618_S02",
    "capture_date": "2026-06-18",
    "timezone": "Asia/Kolkata",
    "collector_id": "WRK_809884",
    "clips_in_session": 1,
    "indoor_outdoor": "indoor",
    "lighting": "mixed",
    "mount_type": "head_mounted_via_headband_egocentric",
    "task_id": "sew_garment",
    "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": "2026-06-18T14:58:00+05:30",
    "capture_start_utc_approx": "2026-06-18T09:28:00Z"
  },
  "task_id": "sew_garment"
}