NFT (Non-Fungible Token)

A Non-Fungible Token (NFT) is a unique cryptographic token that exists on a blockchain and represents ownership of a distinct digital or physical asset. Unlike fungible tokens such as Bitcoin or Ether (where each unit is interchangeable), each NFT has unique identifying information that makes it one-of-a-kind and not directly exchangeable for another NFT of equal value. This non-fungibility is what allows NFTs to represent ownership of unique items.

NFTs are created ("minted") through smart contracts, most commonly on the Ethereum blockchain using token standards like ERC-721 and ERC-1155. The smart contract defines the NFT's properties, ownership history, and any royalty mechanisms that automatically pay the original creator a percentage of each subsequent sale. NFTs can represent digital art, music, video clips, virtual real estate, in-game items, event tickets, domain names, and even real-world assets through tokenization.

The NFT market experienced explosive growth in 2021-2022, with individual pieces selling for millions of dollars (Beeple's "Everydays: The First 5000 Days" sold for $69.3 million at Christie's). However, the market subsequently cooled significantly, with trading volumes declining over 90% from peak levels. Despite the speculative bust, NFT technology continues to find practical applications in digital identity, intellectual property management, supply chain verification, and gaming. The distinction between speculative NFT collecting and utility-driven NFT applications remains important for investors to understand.