{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "properties": {
        "date": {
            "_format": "date",
            "type": "string"
        },
        "date-time": {
            "_format": "date-time",
            "type": "string"
        },
        "ipv4": {
            "_format": "ipv4",
            "type": "string"
        },
        "ipv6": {
            "_format": "ipv6",
            "type": "string"
        },
        "time": {
            "_format": "time",
            "type": "string"
        },
        "uri": {
            "_format": "uri",
            "type": "string"
        }
    },
    "required": [
        "uri",
        "ipv4",
        "ipv6",
        "date-time",
        "date",
        "time"
    ],
    "type": "object"
}