{
    "display": {
        "icon": {
            "item": "minecraft:chain_command_block"
        },
        "title": "Visible child",
        "description": "Visible child of hidden advancement",
        "hidden": false
    },
    "parent": "custom:root",
    "criteria": {
        "impossible": {
            "trigger": "minecraft:impossible"
        }
    }
}