A non-fungible token (NF) is a digital asset that represents something unique, not something you can trade one-for-one with another. Each token has metadata that describes the item and often links to the media file itself. This metadata and the token’s record are stored on a blockchain, so anyone can see who owns the token and when it changed hands.
Creating an NFT, or minting, means adding a new token to a blockchain ledger. This entry usually has a unique ID and a link to metadata that describes the item. The media file itself might be stored elsewhere, like on decentralized storage or a web server, while the token on the blockchain keeps the pointer and ownership record. Smart contracts set the rules for making and transferring tokens.
NFTs are used in different areas where it’s important to prove something is unique or who owns it:
Owning an NFT means you control the private keys for the wallet that holds the token. When you sell an NFT, a blockchain transaction updates the token’s record and shows the new owner in the public history. Many marketplaces make this easy by connecting wallets, showing collections, and handling sales.
NFTs make it easy to prove ownership, but owning a token does not mean you control how a file is copied online. Since tokens and marketplaces are part of the larger crypto world, it’s important to check projects, smart contracts, and platform rules before buying or selling. Guides about scams and how to research projects can help you avoid mistakes.