{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$ref": "#/$defs/Verifier",
  "$defs": {
    "Verifier": {
      "type": "object",
      "properties": {
        "kind": {
          "type": "string",
          "minLength": 1
        },
        "ref": {
          "type": "string"
        }
      },
      "required": [
        "kind",
        "ref"
      ],
      "additionalProperties": false
    }
  }
}