{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/watttime/refs/heads/main/json-structure/watttime-historical-download-response-structure.json",
  "name": "HistoricalDownloadResponse",
  "description": "HistoricalDownloadResponse schema from WattTime API",
  "type": "object",
  "properties": {
    "region": {
      "type": "string",
      "description": "Grid region identifier.",
      "example": "CAISO_NORTH"
    },
    "signal_type": {
      "type": "string",
      "description": "Signal type.",
      "example": "co2_moer"
    },
    "model": {
      "type": "string",
      "description": "Model version date used.",
      "example": "2026-03-01"
    },
    "download_url": {
      "type": "uri",
      "description": "URL to download the historical CSV file.",
      "example": "https://storage.watttime.org/historical/CAISO_NORTH_co2_moer_2023.csv.gz"
    }
  }
}