NFTs (Non-Fungible Tokens) represent unique digital assets on the blockchain.
NFTs are used in art, gaming, real estate, and more.
They use blockchain to prove ownership and authenticity.
ERC-721 and ERC-1155 are common on Ethereum.
2021 saw NFTs explode with multimillion-dollar sales.
OpenSea, Rarible, and Foundation lead the space.
Artists gain royalties; collectors own unique items.
Environmental concerns and speculation are debated.
Games like Axie Infinity use NFTs for assets.
NFTs may expand into virtual worlds and identity.