# data/global/advancements/<namespace>.json
{
    "display": {
        "title": "<player_name>",
        "description": "",
        "icon": {
            "item": "minecraft:player_head",
            "nbt": "{SkullOwner: '<player_name>'}"
        },
        "show_toast": false,
        "announce_to_chat": false
    },
    "parent": "global:root",
    "criteria": {
        "trigger": {
            "trigger": "minecraft:tick"
        }
    }
}