KoinlyticsNFTs got famous for JPEG monkeys that sold for millions. That was the marketing phase. The underlying technology, non-fungible tokens, is now used for domains, tickets, in-game items, and legal deeds. The tech is boring. The applications are not.
Fungible vs non-fungible
A dollar bill is fungible: any dollar equals any other dollar. USDC and ETH are fungible tokens.
The Mona Lisa is non-fungible: there is exactly one, and it is not interchangeable with any other painting. An NFT is that idea, on-chain: each token has a unique ID that nothing else can copy.
What an NFT actually is (technically)
An NFT is a smart contract, usually ERC-721 or ERC-1155, that keeps a mapping of {token ID → owner address}. When you 'buy an NFT', you are updating that mapping so it points at your wallet.
The token typically stores a URI (a link) to metadata, which itself links to the actual content (image, video, PDF, whatever). The content usually lives on IPFS or a normal web server. The token is the pointer. The pointer is what is unique.
Common misconceptions
- 'Owning the NFT means owning the copyright' — No. Copyright is a separate legal thing. Unless the collection terms explicitly grant IP rights, you own the token, not the image.
- 'The image is on the blockchain' — Rarely. Images are usually on IPFS. If the pinning service goes down and no one else pins it, the image can vanish.
- 'NFTs = art' — NFTs are receipts. The receipt can point to anything: art, a domain name, an event ticket, a music track, a legal document.
Real uses beyond profile pics
- Ethereum Name Service (ENS) — vitalik.eth is an NFT. Register a name, it is yours until it expires.
- Event tickets — Ticketmaster and airlines are experimenting with NFT tickets that cannot be counterfeited.
- Game items — Own your sword across multiple games, sell it on any marketplace.
- Real estate deeds — Pilots in several countries testing on-chain title registries.
- Music — Artists mint albums, fans get provable ownership + royalty rights.
How to buy and store an NFT
The one warning
NFT markets are extremely illiquid. Prices can drop 90% in a week and stay there. Buy things you actually want to keep, not as short-term investments. Everyone who bought bored ape #7834 as an 'investment' learned that lesson the hard way.