{
  "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.",
  "clip_id": "sample_02_industrial_sewing_machine",
  "video_file": "sample_02_industrial_sewing_machine.mp4",
  "environment": "factory",
  "capture_device": "Samsung Galaxy S24",
  "duration_seconds": 342.967,
  "timestamps_csv": "annotations/timestamps/sample_02_industrial_sewing_machine_timestamps.csv",
  "frame_count": 10289,
  "utc_precision": "minute_approximate",
  "capture_start_ist_approx": "2026-06-18T14:58:00+05:30",
  "capture_start_utc_approx": "2026-06-18T09:28:00Z"
}