{
  "schema": "silktrain-pilot-sample/v1",
  "synthetic": true,
  "locale": "en",
  "workflow": "video-tracking",
  "service": "data-documents",
  "title": "Video annotation and object tracking",
  "source_scenario": "An object disappears behind a barrier and reappears two frames later.",
  "expected_delivery": "Frame ranges, persistent track IDs, visibility flags and temporal event labels.",
  "acceptance_check": "Replay transitions and check ID continuity through occlusion and scene changes.",
  "scoping_checklist": "Prepare a representative sample, class definitions, edge cases and an export schema with units or coordinates.",
  "examples": [
    {
      "frame": 118,
      "time_ms": 4720,
      "track": 7,
      "visibility": "visible",
      "center_px": [
        50,
        31
      ]
    },
    {
      "frame": 119,
      "time_ms": 4760,
      "track": 7,
      "visibility": "occluded",
      "center_px": null
    },
    {
      "frame": 120,
      "time_ms": 4800,
      "track": 7,
      "visibility": "visible",
      "center_px": [
        55,
        32
      ]
    }
  ]
}