NFT stands for Non-Fungible Token. Despite the hype cycles, NFTs remain an important technical concept in crypto — and understanding them properly goes beyond the JPEG images that dominated headlines.
This guide explains what NFTs actually are, how they work, where they’re used today, and what’s real versus overhyped.
What Does “Non-Fungible” Mean?
Fungible means interchangeable. A £10 note is fungible — you can swap it for any other £10 note and it has the same value.
Non-fungible means unique and not interchangeable. A specific painting is non-fungible — it’s one of a kind. Your birth certificate is non-fungible — no other certificate has the same information.
An NFT is a digital asset on a blockchain that is provably unique — there is a verifiable, public record of its existence, ownership, and transaction history.
How Do NFTs Work Technically?
NFTs are created using smart contracts — self-executing code on a blockchain (most commonly Ethereum). When someone “mints” an NFT:
- A smart contract is deployed (or an existing one is used)
- The smart contract creates a unique token with a unique ID
- The token’s ownership is assigned to the creator’s wallet address
- The token can be transferred, sold, or held
The NFT is the token — a unique digital certificate recorded on-chain. The actual media (image, video, music file) is usually stored separately (often on IPFS, a distributed file system) with a link embedded in the NFT’s metadata.
Token Standards
Common NFT standards:
What Can an NFT Represent?
NFTs can represent any unique digital (or physical) asset:
Digital art — The original use case that drove the 2021 bull market. Artists can sell unique or limited-edition digital works with verifiable provenance.
Music and media — Musicians can sell NFT albums, limited editions, or access tokens. Kings of Leon released an NFT album. Artists experiment with royalties built into smart contracts.
Gaming items — In-game weapons, characters, land, and skins as NFTs. Players truly own their items and can trade them outside the game.
Domain names — Ethereum Name Service (ENS) domains (like yourname.eth) are NFTs. Same for .sol on Solana.
Event tickets — NFT tickets are harder to counterfeit and allow creators to earn royalties on resale.
Real-world assets (RWAs) — Property deeds, luxury goods authentication, identity documents. A growing use case as of 2026.
Membership and access tokens — NFTs that grant access to communities, events, or services. Like a digital membership card.
Sports moments — NBA Top Shot turned basketball highlights into collectible NFTs. Similar products exist for other sports.
The 2021 Bubble and What Remained
In 2021, NFT trading volume exploded. Profile picture (PFP) collections like Bored Ape Yacht Club (BAYC) sold for millions. CryptoPunks were acquired by Sotheby’s. Beeple’s digital artwork sold for $69 million at Christie’s.
By 2022–2023, speculative prices collapsed. Many projects became worthless. The vast majority of 2021-era NFT collections lost 90%+ of their value.
What remained after the bubble:
- NFT infrastructure and technology improved significantly
- Legitimate use cases (gaming, ticketing, domain names, RWAs) grew
- Blue-chip collections (CryptoPunks, BAYC) retained significant value relative to peak but are far off highs
- Institutional interest in NFTs for real-world asset tokenisation increased
- The concept of verifiable digital ownership proved genuinely useful
As of 2026, NFTs are no longer primarily about speculative JPEG trading. The technology is being applied to practical problems.
Where Are NFTs Traded?
OpenSea — The largest general NFT marketplace. Supports Ethereum, Polygon, and other chains.
Blur — An NFT trading platform popular with professional traders. High volume, low fees, aggregates listings.
Magic Eden — Originally Solana-focused, now multi-chain. Large Solana NFT market.
X2Y2 and LooksRare — Ethereum NFT alternatives to OpenSea.
Foundation and SuperRare — Curated art platforms. More focused on digital art and artist credibility.
NFTs on Different Blockchains
Ethereum — Largest NFT ecosystem, highest-value collections, most established. Higher gas fees but lower on L2s.
Solana — Low fees, fast transactions. Popular for gaming NFTs and mid-range collections. Phantom wallet is the dominant Solana wallet.
Polygon — Ethereum L2 with very low fees. Used by major brands (Reddit, Starbucks, Nike) for accessible NFT projects.
Flow — Purpose-built blockchain for NFTs. NBA Top Shot runs on Flow.
Bitcoin (Ordinals) — Bitcoin Ordinals, launched in 2023, allow NFT-like inscriptions on Bitcoin. Controversial but creates a Bitcoin-native NFT market.
How to Buy an NFT
- The NFT transfers to your wallet address
Gas fees apply to Ethereum transactions. On Solana, fees are negligible.
Risks in NFTs
Rug pulls — Project creators abandon the project after selling NFTs, leaving buyers with worthless tokens. Common during the 2021 boom.
Counterfeit NFTs — Someone can create an NFT pointing to an image of the Mona Lisa — the NFT doesn’t mean they own the original. Always verify the contract address and creator.
Wash trading — Fake trades between related wallets to inflate apparent trading volume and prices.
Smart contract bugs — If a marketplace or collection contract has vulnerabilities, NFTs can be stolen.
Illiquidity — NFTs are far less liquid than fungible tokens. Selling at a fair price can take days or weeks.
Storage risk — If an NFT’s metadata points to a centralised server (not IPFS), the image could disappear if that server goes offline.
NFTs and Tax (UK)
NFTs are treated like other crypto assets for UK tax purposes:
- Buying an NFT is not a taxable event
- Selling or swapping an NFT is a CGT disposal
- Creating and selling NFTs as a business may be subject to Income Tax as trading income
FAQ
Do you own the image when you buy an NFT?
Not necessarily — you own the NFT (the token), not the copyright. Some NFT projects transfer intellectual property rights; most don’t. Read the terms of the specific project.
Can’t people just screenshot an NFT?
Yes, but the screenshot doesn’t give ownership of the token. It’s similar to printing a photo of a painting — the original is still documented on-chain. The value comes from verifiable ownership and scarcity, not the ability to view the image.
Are NFTs still relevant in 2026?
NFT technology is increasingly relevant for practical applications (real-world assets, gaming, ticketing). Speculative profile picture collections are much less prominent than in 2021.
What wallets support NFTs?
MetaMask supports Ethereum NFTs. Phantom supports Solana NFTs. Most wallets will display NFTs you hold automatically.
Can I create my own NFT?
Yes. Platforms like OpenSea allow anyone to mint NFTs without coding (a “lazy mint” process where the NFT is created when first sold). For custom projects, you’d deploy a smart contract.
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