NFT basically creates a blockchain-based digital certificate for your digital collectibles, including games, music, art, and many more. This certificate gives your artwork a unique identity.
The underlying technology and the programming language used by nfts are the same as other
cryptocurrencies.
The majority of NFTs exists on the Ethereum blockchain, which is a distributed public ledger that records and keep all the transactions.
However, NFTs are quite different from cryptocurrencies such as Bitcoin and Ethereum, which are fungible tokens, meaning that if you trade Bitcoin or Ethereum for one another, you will have the same value or item in return. On the other hand, an nft is a unique token, therefore, if you try to trade it you may end up with something completely different in your hands.
Crypto Punks is a remarkable example of a nft, it enables you to buy, sell, and store 10,000 collectibles with the proof of ownership being stored on the Ethereum Blockchain.