{
  "version": 1,
  "size": 2031633,
  "mtime_ns": 1789010653838742017,
  "duration": 5.1,
  "note": "No clear motion in 2.0s probes — stills every 2.0s. A short train can sit between them; watch the clip if it looks empty.",
  "suggest": null,
  "frames": [
    {
      "t": 0.0,
      "file": "000_00000.jpg",
      "brightness": 89.99138888888889
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    {
      "t": 2.0,
      "file": "001_00200.jpg",
      "brightness": 54.573055555555555
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    {
      "t": 4.0,
      "file": "002_00400.jpg",
      "brightness": 27.33361111111111
    },
    {
      "t": 5.04,
      "file": "003_00504.jpg",
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}