{
  "$id": "https://example.com/registration.schema.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Person",
  "type": "object",
  "properties": {
    "traits": {
      "type": "object",
      "properties": {
        "bar": {
          "type": "string"
        },
        "email": {
          "$ref": "http://192.168.178.1:1234/"
        }
      }
    }
  }
}