src/test/resources/draft7/urn/issue665_external_urn_subschema.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "urn:data",
  "type": "object",
  "required": [
    "value"
  ],
  "properties": {
    "value": {
      "type": "string"
    }
  }
}