{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/blockchain/refs/heads/main/json-schema/charts-stats-chart-schema.json",
  "title": "Chart",
  "description": "Time-series dataset returned by the Charts API.",
  "type": "object",
  "properties": {
    "status": {
      "type": "string",
      "description": "Response status (e.g. `ok`).",
      "example": "ok"
    },
    "name": {
      "type": "string",
      "description": "Chart name.",
      "example": "Market Price (USD)"
    },
    "unit": {
      "type": "string",
      "description": "Unit of measure for `y` values.",
      "example": "USD"
    },
    "period": {
      "type": "string",
      "description": "Sampling period (e.g. `day`)."
    },
    "description": {
      "type": "string",
      "description": "Human-readable description of what the chart represents."
    },
    "values": {
      "type": "array",
      "description": "Time-series data points.",
      "items": {
        "type": "object",
        "description": "Single time-series sample.",
        "properties": {
          "x": {
            "type": "integer",
            "format": "int64",
            "description": "Timestamp in Unix seconds.",
            "example": 1
          },
          "y": {
            "type": "number",
            "description": "Measured value at `x`.",
            "example": 1.0
          }
        }
      }
    }
  }
}