{

"$schema": "http://json-schema.org/draft-07/schema#",
"$id": "https://raw.githubusercontent.com/epoberezkin/ajv/master/lib/refs/data.json#",
"description": "Meta-schema for $data reference (JSON Schema extension proposal)",
"type": "object",
"required": [ "$data" ],
"properties": {
    "$data": {
        "type": "string",
        "anyOf": [
            { "format": "relative-json-pointer" }, 
            { "format": "json-pointer" }
        ]
    }
},
"additionalProperties": false

}