Beginner Guide
What is an NFT?
An NFT — non-fungible token — is a unique digital certificate of ownership recorded on a blockchain. The image, song, or in-game item it points to is shareable. The proof that you own it isn't.
Fungible vs non-fungible
A dollar bill is fungible — swap one for another and nothing changes. Bitcoin and most cryptocurrencies are fungible too. NFTs are the opposite. Each token has a unique ID and metadata that distinguishes it from every other token. Owning a particular NFT is more like owning a deed to a specific house than holding cash.
Most NFTs live on Ethereum and follow a standard called ERC-721 (or ERC-1155 for semi-fungible items). Wallets and marketplaces read the standard the same way, so an NFT minted on one platform can be displayed and traded anywhere.
What can NFTs actually be used for?
Beyond profile pictures, NFTs power digital art ownership, music royalty splits, in-game assets, event tickets, domain names like .eth, and proof of attendance (POAPs). Brands use them for membership passes; musicians use them to sell limited drops directly to fans; games use them so players truly own their loot.
The 2021 NFT bubble was full of speculation, but the underlying tech is durable. NFTs are the simplest way blockchains have to express 'this specific thing belongs to this specific wallet,' which is useful well beyond JPEGs.
How do you actually own an NFT?
When you buy an NFT, the marketplace transfers the token to your wallet address. Your wallet — proven by your private key — is the only thing that can move it again. There is no company server backing this up. Lose your seed phrase and you lose the NFT.
The image itself is usually stored off-chain, often on IPFS (a distributed file system). The token records a permanent pointer to that file, plus on-chain metadata like creator, royalties, and edition number.
NFT scams to avoid
NFTs attract a brutal amount of fraud. Common attacks include fake mint sites that drain wallets the moment you sign, 'free' airdrops that ask for a malicious approval, and impostor collections that copy a famous artwork and post it on a different chain. Always verify contract addresses, never sign blind transactions, and treat unsolicited NFTs in your wallet with suspicion — interacting with them can compromise everything you own.
Frequently Asked Questions
Can't I just right-click and save the image?
Yes, you can save the image. But you can't move the on-chain token — that requires the private key of the owner's wallet. NFTs are about provable ownership, not about preventing screenshots.
Are NFTs dead?
Speculative profile-picture trading peaked in 2021-2022. But NFT infrastructure is more active than ever — used for music, gaming, ticketing, and identity. The category is consolidating, not disappearing.
How much does it cost to mint an NFT?
On Ethereum mainnet, minting can cost $5-$50 in gas depending on congestion. On layer 2s like Base or Polygon, it's usually under a dollar. Many NFT platforms now subsidize gas entirely.
Do NFTs pay royalties?
NFT contracts can encode royalties (e.g., 5% to the original creator on every resale). Whether marketplaces honor them is a separate question — many made royalties optional in 2023, which sparked an ongoing debate among artists and platforms.
What's the safest way to buy my first NFT?
Use a major marketplace like OpenSea, Blur, or Magic Eden. Connect a fresh wallet, fund it with only what you plan to spend, and verify the collection's official contract address before buying.