{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "name": {
            "type": "string"
        },
        "number": {
            "type": "integer",
            "minimum": 0
        },
        "stuff": {
            "type": "array",
            "_uniqueItems": true,
            "minItems": 1,
            "items": {
                "type": "string"
            }
        },
        "url": {
            "type": "string",
            "format": "uri"
        }
    },
    "required": [
        "name"
    ]
}