{
   "$id": "https://example.com/schemas/uuid.json",
   "title": "Universally Unique IDentifier (UUID); see https://tools.ietf.org/html/rfc4122",
   "$schema": "http://json-schema.org/draft-07/schema",

   "type": "string",
   "pattern": "^[0-9a-fA-F]{8}-?[0-9a-fA-F]{4}-?[0-9a-fA-F]{4}-?[0-9a-fA-F]{4}-?[0-9a-fA-F]{12}$"
}