{
  "name": "How every number is calculated",
  "durationSeconds": 16,
  "chapters": [
    {
      "start": 0,
      "end": 4,
      "narration": "Every visible metric can show its source."
    },
    {
      "start": 4,
      "end": 8,
      "narration": "Formulas and exclusions stay inspectable."
    },
    {
      "start": 8,
      "end": 12,
      "narration": "Adapter health surfaces coverage gaps."
    },
    {
      "start": 12,
      "end": 16,
      "narration": "Atlas views stay non-geographic."
    }
  ]
}