{
    "display": {
        "icon": {
            "item": "minecraft:command_block"
        },
        "title": "Hidden parent",
        "description": "Hidden parent advancement",
        "background": "minecraft:textures/gui/advancements/backgrounds/stone.png",
        "hidden": true
    },
    "criteria": {
        "impossible": {
            "trigger": "minecraft:impossible"
        }
    }
}