{
  "session_id": "GGN_20260618_S03",
  "capture_date": "2026-06-18",
  "timezone": "Asia/Kolkata",
  "collector_id": "WRK_111569",
  "clips_in_session": 1,
  "indoor_outdoor": "indoor",
  "lighting": "tubelight_cfl",
  "mount_type": "head_mounted_via_headband_egocentric",
  "task_id": "heat_shrink_wrap",
  "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_03_heatgun_and_batching",
  "video_file": "sample_03_heatgun_and_batching.mp4",
  "environment": "factory",
  "capture_device": "Samsung Galaxy S24",
  "duration_seconds": 306.999,
  "timestamps_csv": "annotations/timestamps/sample_03_heatgun_and_batching_timestamps.csv",
  "frame_count": 9210,
  "utc_precision": "minute_approximate",
  "capture_start_ist_approx": "2026-06-18T12:09:00+05:30",
  "capture_start_utc_approx": "2026-06-18T06:39:00Z"
}