A Non-Fungible Token (NFT) is a data unit stored in a blockchain that is unique and non-interchangeable. NFT can be used to represent pictures, video, audio and other types of digital files. Since it serves as a virtual certificate of authenticity, it is non-fungible and copies are not accepted. Anyone can obtain copies of these digital items, but NFTs are tracked on the blockchain, requiring proof of copyright and ownership to the owner.
The size of the global non-fungible token (NFT) market is expected to grow from 20 trillion won last year to 230 trillion won in 2025.