NBT (Data Type)

A String or Object holding named binary tag (NBT) data. It is made of key and value pairs, where the key is the name of the tag, separated by commas.

Examples

"nbt": "{example: {is_special: true, numbers: [100, 3, -56]}}"

This is an object NBT containing another object NBT named example. example holds two tags: is_special, a boolean that becomes a byte NBT (1b), and numbers, an integer array NBT.

"nbt": {
    "example": {
        "is_special": true,
        "numbers": [
            100,
            3,
            -56
        ]
    }
}

The same example, written as a JSON object.