{
  "schema_version": 1,
  "edition": "rolling seven days",
  "generated_at_utc": "2026-11-07T17:58:12Z",
  "source": {
    "title": "OHPAH Research dispatch corpus",
    "kind": "aggregate-only public endpoint",
    "published_fields": "aggregate counts only"
  },
  "window": {
    "start_et": "2026-09-29T01:27:24-04:00",
    "end_et": "2026-10-06T01:27:24-04:00",
    "hours": 168
  },
  "metrics": {
    "total_alert_candidates": 2873,
    "mean_per_24_hours": 410.4,
    "night_share_pct": 19
  },
  "daily": [
    {
      "date": "2026-09-29",
      "label": "Sep 29",
      "count": 338
    },
    {
      "date": "2026-09-30",
      "label": "Sep 30",
      "count": 430
    },
    {
      "date": "2026-10-01",
      "label": "Oct 1",
      "count": 474
    },
    {
      "date": "2026-10-02",
      "label": "Oct 2",
      "count": 409
    },
    {
      "date": "2026-10-03",
      "label": "Oct 3",
      "count": 397
    },
    {
      "date": "2026-10-04",
      "label": "Oct 4",
      "count": 357
    },
    {
      "date": "2026-10-05",
      "label": "Oct 5",
      "count": 452
    },
    {
      "date": "2026-10-06",
      "label": "Oct 6",
      "count": 16
    }
  ],
  "call_types": [
    {
      "label": "MEDICAL",
      "count": 2458
    },
    {
      "label": "FIRE",
      "count": 228
    },
    {
      "label": "MVC",
      "count": 187
    }
  ],
  "quality": {
    "structured_rows_read": 3571,
    "dedupe_window_seconds": 600,
    "candidate_definition": "Structured dispatch rows with a recognized apparatus identifier and broad emergency type."
  },
  "method": [
    {
      "label": "Source corpus",
      "text": "Server-side structured rows from the live OHPAH Research dispatch corpus. The public response contains aggregates only."
    },
    {
      "label": "Candidate rule",
      "text": "A row counts only when it contains both a recognized apparatus identifier and a broad fire, medical, or motor-vehicle type."
    },
    {
      "label": "Privacy boundary",
      "text": "The query never selects transcript, address, row identifier, audio, or person-level fields; only aggregate counts leave the worker."
    },
    {
      "label": "Publish check",
      "text": "The endpoint and website publisher fail closed when the source is unavailable, no candidates are found, required fields are missing, or totals do not reconcile."
    }
  ],
  "limitations": [
    "Florida radio systems represented in the OHPAH Research corpus only.",
    "Transcript-derived alert candidates are not verified CAD incidents or confirmed unit responses.",
    "Repeated transmissions with the same talkgroup, unit, and broad type are grouped within a ten-minute window.",
    "No transcript, address, source-row link, row identifier, or person-level record is published."
  ]
}