{
  "data_version": 97,
  "layer": "ky-history",
  "entry_count": 194,
  "last_brief_date": "2026-10-19",
  "first_brief_date": "2026-08-27",
  "updated_at": "2026-10-19T12:30:00Z",
  "notes": "Cumulative place-based pins from daily KY History Morning Updates. App ships full ky-history.json each release; deltas record what was new since prior data_version."
}