MCMinecraft Assets Explorer

{
    "display": {
        "icon": {
            "item": "minecraft:beacon"
        },
        "title": {
            "translate": "advancements.nether.create_beacon.title"
        },
        "description": {
            "translate": "advancements.nether.create_beacon.description"
        }
    },
    "parent": "minecraft:nether/summon_wither",
    "criteria": {
        "beacon": {
            "trigger": "minecraft:construct_beacon",
            "conditions": {
                "level": {"min": 1}
            }
        }
    }
}