{
  "type": "object",
  "required": ["Timestamp"],
  "properties": {
    "Timestamp": {
      "type": "integer",
      "minimum": 0
    },
    "Type": {
      "type": "string"
    },
    "Logger": {
      "type": "string"
    },
    "Hostname": {
      "type": "string",
      "format": "hostname"
    },
    "EnvVersion": {
      "type": "string",
      "pattern": "^\\d+(?:\\.\\d+){0,2}$"
    },
    "Severity": {
      "type": "integer",
      "minimum": 0,
      "maximum": 7
    },
    "Pid": {
      "type": "integer",
      "minimum": 0
    },
    "Fields": {
      "type": "object",
      "minProperties": 1,
      "additionalProperties": {
        "anyOf": [
          {
            "$ref": "#/definitions/field_value"
          },
          {
            "$ref": "#/definitions/field_array"
          },
          {
            "$ref": "#/definitions/field_object"
          }
        ]
      }
    }
  },
  "definitions": {
    "field_value": {
      "type": ["string", "number", "boolean"]
    },
    "field_array": {
      "type": "array",
      "minItems": 1,
      "oneOf": [
        {
          "items": {
            "type": "string"
          }
        },
        {
          "items": {
            "type": "number"
          }
        },
        {
          "items": {
            "type": "boolean"
          }
        }
      ]
    },
    "field_object": {
      "type": "object",
      "required": ["value"],
      "properties": {
        "value": {
          "oneOf": [
            {
              "$ref": "#/definitions/field_value"
            },
            {
              "$ref": "#/definitions/field_array"
            }
          ]
        },
        "representation": {
          "type": "string"
        }
      }
    }
  }
}