{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Story cover",
  "description": "A record to be used as source of cover, the record must be an element of the story",
  "type": "object",
  "properties": {
    "record_id": {
      "description": "The identifier of the record used for cover (in the same databox as the story)",
      "type": "integer"
    }
  },
  "required": ["record_id"]
}