The Name Wrapper is a smart contract in the Ethereum Name Service (ENS), the system that maps human-readable names such as alice.eth to wallet addresses. Launched in 2023, it "wraps" an ENS name into an ERC-1155 token, a format that differs from the ERC-721 NFTs used for .eth names before. Wrapping adds permission switches called fuses, which an owner can "burn" to remove powers permanently, for example the ability to transfer a subname or change its records. This lets a name owner issue subnames, such as pay.company.eth, and guarantee to their holders that the parent owner cannot take them back. Wrapping is optional, and unwrapped names keep working. The design is useful for communities and businesses, but burned fuses cannot be restored, so mistakes are permanent.
Last updated 13 Nov 2026