Non-Fungible Token (NFT)

A non-fungible token (NFT) is a unique cryptographic token recorded on a blockchain that represents ownership and authenticity of a specific item. Unlike fungible assets such as Bitcoin, where each unit is interchangeable, each NFT has distinct identifying data, often called token IDs and metadata, that makes it one of a kind and not directly replaceable with another token.

Most NFTs are created using smart contract standards on programmable blockchains, such as Ethereum, that define how tokens are minted, transferred, and tracked. The blockchain record acts like a public ledger of provenance, showing which wallet minted or acquired the NFT and how it moved over time. The NFT typically points to metadata describing the asset, for example a name, traits, and a link to an image, audio file, or 3D model, which may be stored on decentralized networks like IPFS or on traditional servers. This distinction matters because the token proves ownership of the NFT itself, while the underlying media may be hosted elsewhere.

NFTs are commonly used for digital art and collectibles, where scarcity and verifiable ownership are central to value. They also appear in gaming as tradable in game items, in music as tokenized releases, and in virtual worlds as land or wearables. Outside purely digital use cases, NFTs can function as certificates tied to physical goods, tickets, or membership passes. In these cases, the NFT can help with authentication and resale, though legal rights such as copyright or access terms depend on the issuer’s contract and policies, not automatically on the token.

NFTs expand blockchains beyond payments by enabling ownership, provenance, and transfer of unique assets without a central registrar. They underpin new models for creators, communities, and digital commerce, while also highlighting important considerations around storage, rights, and trust in the issuer.