What Is an NFT (Non-Fungible Token)? How They Work and What They’re Used For
Last updated 04/10/2026 by
Ante Mazalin
Edited by
Andrew Latham
Summary:
An NFT (non-fungible token) is a unique cryptographic token recorded on a blockchain that certifies ownership of a specific digital or physical asset — each NFT is one-of-a-kind and cannot be replicated or exchanged on a 1-for-1 basis with another token, unlike cryptocurrencies such as Bitcoin or Ethereum. NFTs have four defining characteristics.
- Non-fungibility: Each NFT has a unique identifier that distinguishes it from every other token. Two NFTs from the same collection are not interchangeable — unlike two dollars, which are identical in value and can be freely swapped.
- Blockchain provenance: Ownership history is recorded permanently on a public blockchain — typically Ethereum — creating a verifiable chain of custody that cannot be altered.
- Smart contract enforcement: NFTs are governed by smart contracts that can automatically execute royalty payments to original creators each time the NFT is resold.
- Separability from content: Owning an NFT grants ownership of the token — the blockchain record — not necessarily the copyright or reproduction rights to the underlying content.
NFTs existed in limited form as early as 2014, but exploded into mainstream awareness in 2021 when digital artist Beeple sold an NFT for $69.3 million at Christie’s auction house, and total NFT market volume reached approximately $25 billion for the year. The market contracted sharply in 2022–2023, with most NFTs losing significant value.
Understanding NFTs requires separating what they technically are — a blockchain ownership record — from what they were marketed as, and from their legitimate long-term use cases outside of speculative digital art.
Fungibility: The Core Concept
The “non-fungible” in NFT is the defining characteristic. Fungibility means that two units of an asset are interchangeable — one dollar can replace another dollar without any change in value. Bitcoin is fungible: one BTC equals one BTC regardless of which specific coin it is.
NFTs are non-fungible — each token has a unique identity that makes it distinct from every other token, even within the same collection. A Bored Ape Yacht Club NFT #1 and #2 are different assets with different values, even though they were minted from the same contract.
How NFTs Work Technically
An NFT is created (“minted”) by executing a transaction on a blockchain that generates a new token with a unique ID and links it to a piece of data — typically an image file, video, or audio. The process:
- A creator deploys or uses an existing NFT smart contract standard (ERC-721 on Ethereum is the most common)
- The smart contract mints a new token with a unique identifier and assigns it to the creator’s wallet address
- The token metadata — which points to the actual file (image, video, etc.) — is stored on-chain or, more commonly, off-chain via IPFS or a centralized server
- The NFT is listed on a marketplace (OpenSea, Blur, Magic Eden) and can be bought, sold, or transferred between wallets
- Each transaction is recorded on the blockchain permanently — creating an immutable ownership history
An important distinction: the blockchain records who owns the NFT token, not who owns the copyright to the underlying image. Unless the creator explicitly assigns copyright to the buyer, the creator retains reproduction rights. Most NFT purchases transfer the token only.
NFT Use Cases
| Use Case | How NFTs Apply | Examples |
|---|---|---|
| Digital art and collectibles | Proof of ownership for digital artwork; creator royalties built into smart contract | Bored Ape Yacht Club, CryptoPunks, Art Blocks |
| Gaming assets | In-game items (weapons, characters, land) owned by players rather than game companies; transferable between wallets | Axie Infinity, Decentraland, The Sandbox |
| Event tickets and access passes | Tickets minted as NFTs prevent fraud and enable peer-to-peer resale with built-in royalties to organizers | Token-gated concerts, conference passes |
| Real-world asset tokenization | Deeds, certificates, and ownership records represented on-chain for faster, verifiable transfer | Tokenized real estate parcels, luxury goods authentication |
| Music and media royalties | Artists sell fractional ownership of royalty streams via NFTs; smart contracts distribute earnings automatically | Royal.io, Sound.xyz |
| DeFi collateral | High-value NFTs used as collateral in DeFi lending protocols — borrower pledges NFT, receives stablecoin loan | NFTfi, Arcade.xyz |
NFT Market Cycle: Rise and Correction
The NFT market followed a boom-bust pattern that closely tracked broader cryptocurrency markets:
- 2020–early 2021: Niche market with limited participants; NBA Top Shot launches and attracts mainstream attention
- Mid 2021: Beeple’s $69.3M Christie’s sale; Bored Ape Yacht Club launch; total market volume surges; floor prices for major collections reach hundreds of thousands of dollars
- Late 2021–2022: Market peaks; speculative buying; wash trading inflates volume figures; celebrity endorsements drive retail participation
- 2022–2023: Market collapses; most collections lose 90%+ of peak value; trading volume falls 97% from peak; multiple celebrity-endorsed projects lose all value
- 2024–present: Market stabilizes at lower volumes; focus shifts to utility NFTs (gaming, real-world assets, ticketing) over pure speculative art
Pro Tip: Before purchasing an NFT, verify where the actual asset file is stored. If the token metadata points to a centralized server (not IPFS or on-chain storage), the image or file can disappear if the company hosting it shuts down — leaving you with a token that points to nothing. Many NFTs from 2021’s peak now have broken image links because the hosting companies went out of business. Permanent on-chain or IPFS storage is substantially more durable.
NFT Tax Treatment in the U.S.
The IRS treats NFTs as property — the same framework applied to cryptocurrency. Key tax implications:
- Buying an NFT with cryptocurrency is a taxable event on the crypto used — you realize a capital gain or loss on the crypto at the time of purchase
- Selling an NFT generates a capital gain or loss — short-term (held under 1 year, taxed as ordinary income) or long-term (held over 1 year, taxed at preferential capital gains rates)
- Creating and selling an NFT as a creator generates ordinary income — not capital gains — on the proceeds
- Royalties received from secondary sales are ordinary income to the creator
Key takeaways
- An NFT is a unique blockchain token that records ownership of a specific asset. Unlike fungible tokens (Bitcoin, ETH), each NFT is one-of-a-kind and non-interchangeable.
- Owning an NFT means owning the token — not the copyright to the underlying file. Reproduction rights remain with the creator unless explicitly transferred.
- NFTs are created via smart contracts on blockchains (primarily Ethereum) using the ERC-721 standard; ownership history is immutably recorded on-chain.
- The NFT market peaked in 2021 (approximately $25B in annual volume) and contracted sharply in 2022–2023, with most speculative collections losing 90%+ of peak value.
- Utility NFTs — gaming assets, event tickets, real-world asset tokenization — represent more durable long-term use cases than pure speculative digital art.
- The IRS treats NFT transactions as property — selling generates capital gains or losses; creating and selling generates ordinary income.
Frequently Asked Questions
Can an NFT be copied?
The image or file associated with an NFT can be copied — anyone can right-click and save a JPEG. What cannot be duplicated is the blockchain record of ownership. The NFT is the ownership token, not the image itself. This is the same principle as owning an original painting vs. a print — both images look identical, but the provenance and ownership record distinguish them. Whether that distinction carries value depends entirely on what buyers are willing to pay for it.
What gives an NFT its value?
NFT value is driven by perceived scarcity, community membership, creator reputation, and speculative demand — not by any intrinsic utility in most cases. A Bored Ape NFT has value because a community of buyers agreed it did, in the same way a rare trading card has value because collectors want it. Unlike stocks, NFTs generate no cash flow. Unlike real estate, they produce no income. Their value is entirely a function of what the next buyer will pay.
Is an NFT the same as cryptocurrency?
No — though both exist on blockchains. Cryptocurrency (Bitcoin, ETH) is fungible — each unit is identical and interchangeable. NFTs are non-fungible — each token is unique. You can use cryptocurrency to buy NFTs, and both are recorded on blockchains, but they serve different purposes and follow different token standards. Cryptocurrency functions as a medium of exchange; NFTs function as ownership certificates for unique assets.
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