{
  "schema": "rankinglab.externals/1",
  "_help": "External reference signal for one ranking, prepared by the data team. Only sources whose terms permit the use may be listed (see /policies/data-sources/). Values are 0 to 100; null means the entry is not covered and the median is imputed. An empty sources list sets the weight to zero.",
  "ranking": "<ranking slug>",
  "sources": [
    {
      "name": "CWTS Leiden Ranking Open Edition",
      "basis": "open-licence",
      "evidence": "Results and data files released under CC0, https://open.leidenranking.com/resources",
      "indicator": "<e.g. PP(top 10%) in the relevant field, converted to a percentile among covered entries>"
    }
  ],
  "method": "<How source values were converted to 0 to 100>",
  "values": {
    "<entry-id>": 72.5,
    "<another-entry-id>": null
  }
}