{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "allOf": [{ "$ref": "#/$defs/DataSchema" }],
    "$defs": {
        "DataSchema": {
            "type": "object",
            "allOf": [{ "$ref": "#/$defs/JsonSchema" }],
            "properties": {
                "$schema": { "$ref": "#/$defs/Profile" }
            }
        },
        "JsonSchema": {
            "$ref": "https://json-schema.org/draft/2020-12/schema"
        },
        "Profile": {
            "$ref": "#/$defs/ExternalPath"
        },
        "ExternalPath": {
            "type": "string",
            "pattern": "^https?://"
        }
    }
}