{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "UUID",
  "$ref": "#/definitions/uuid",
  "definitions": {
    "uuid": {
      "type": "string",
      "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
    }
  }
}