NFTs — Non-Fungible Tokens — became one of the most talked-about phenomena in financial history during 2021, with digital images selling for millions and household names from Nike to the NBA launching NFT projects. Beyond the speculation and hype, the underlying technology represents a genuinely novel invention: a reliable way to prove unique digital ownership on a public ledger.
Fungible vs Non-Fungible
🪙 Fungible (Bitcoin, ETH)
Every unit is identical and interchangeable. Your 1 BTC is exactly the same as anyone else's 1 BTC. Like cash — a £10 note is the same as any other £10 note.
🎨 Non-Fungible (NFTs)
Each token is unique and not interchangeable. Like a painting — the Mona Lisa cannot be swapped for any other painting as if they were equal. Each NFT has a unique identifier on the blockchain.
How NFTs Work Technically
NFTs are typically created using the ERC-721 or ERC-1155 token standards on Ethereum (and equivalent standards on other blockchains). The token itself doesn't store the artwork — it stores metadata pointing to where the artwork is hosted, plus a unique identifier. The blockchain record proves who owns which token, creating verifiable digital scarcity for the first time.
Creator mints NFT
Artist deploys a smart contract creating a unique token ID and associating it with their artwork's metadata.
Blockchain records ownership
The creator's wallet address is recorded as the first owner. This is publicly verifiable.
Transfer on sale
When sold, the blockchain updates the owner record to the buyer's wallet. Creator receives royalties automatically via smart contract.
Provenance forever
Every transfer is permanently recorded. Anyone can verify the entire ownership history of any NFT at any time.
NFT Use Cases: Beyond Digital Art
Digital Art & Collectibles
The original use case. Artists mint digital works as NFTs, enabling verifiable scarcity and direct-to-collector sales with ongoing royalties.
Event Ticketing
NFT tickets eliminate counterfeiting, enable programmable resale rules, and create provenance records of attendance.
Gaming Assets
In-game items (weapons, skins, land) as NFTs allow true player ownership and trading between games on compatible blockchains.
Music Rights
Musicians can tokenise songs or royalty rights, allowing fans to own a share of future earnings and participate in the artist's success.
Real-World Asset Tokenisation
NFTs representing ownership of physical assets: real estate, fine art, collectibles. Combines blockchain transparency with physical asset ownership.
Digital Identity
NFT-based credentials and badges (Proof of Attendance, certifications) that are verifiable and non-transferable (soulbound tokens).
The NFT Market: Reality Check
The 2021 NFT boom saw speculative mania that significantly outpaced fundamental value. NFT trading volume dropped over 95% from its peak by 2023. Many PFP (profile picture) projects lost nearly all their value. The lesson: speculative NFT purchases require understanding that most do not retain value, and price is driven primarily by sentiment and community rather than intrinsic utility.
The underlying NFT technology, however, continues to evolve meaningfully — especially in asset tokenisation, which Wealtii leverages for tokenised real-world assets like gold and equities in its index funds.
Frequently Asked Questions
What are NFTs?
Unique digital assets recorded on a blockchain, each with a distinct identifier. NFTs can represent art, music, in-game items, memberships, or ownership of physical assets. Unlike cryptocurrencies, each NFT is one-of-a-kind and not interchangeable.
Are NFTs still relevant in 2025/2026?
The speculative art NFT market contracted dramatically from its 2021 peak. But NFT technology is maturing into legitimate applications: event ticketing, gaming, real-world asset tokenisation, and digital identity — areas with genuine utility beyond pure speculation.
Disclaimer: Educational content only. Digital assets are volatile. Wealtii is early-stage and NOT YET REGULATED in all jurisdictions.