Explain like I'm five · Emerging Tech

What is NFT?

NFTs, told as a story about a certificate stuck onto a copyable digital picture, saying 'this one is the real one.'

if I just save this, don't I have the exact same picture?a digital picture, copied, is pixel-for-pixel identical to the original

If I just save this, don't I have the exact same picture?A digital picture, copied, is pixel-for-pixel identical to the original.

even with ten copies, there's no way to tell which one is 'the real one'

Then there's no telling who holds the 'real original.'Even with ten copies, there's no way to tell which one is 'the real one.'

NFT = leaving the picture as-is, but attaching a separate 'this one is the real one' certificatethe certificate goes into a shared ledger (blockchain) everyone keeps, so it can't be quietly altered

An NFT leaves the picture as-is, but attaches a separate 'this one is real' certificate.The certificate is written into a shared ledger (blockchain) everyone keeps, so it can't be quietly altered.

The artwork stays as-isthe picture itself doesn't change
Attach a certificateattaches one unique ID
Record on a shared ledgereveryone keeps the record, so it can't be quietly altered
Still copyableit can't stop the image file from being copied
WHAT THE CERTIFICATE RECORDSthis work's unique IDwho currently holds itwhose hands it passed through (history)the certificate is not the artwork itselfthe image file itself can still be viewed and copied by anyone

The certificate records an ID, the owner, and the trade history.The image file itself can still be viewed and copied by anyone.

the ledger proves, for certain, who holds the certificatethe picture itself can still be downloaded and copied by anyonean NFT records who holds this token, not a lock against copying

Only the certificate is unique — it can't stop the picture from being copied.An NFT records who holds this token; it isn't a lock against copying, and it doesn't transfer copyright by itself.

In one breath

NFT = a technology that attaches a unique ID (a token) to a digital work, proving only who holds that token.

An NFT (Non-Fungible Token) is a unique token linked to a digital asset, with its holder and transaction history recorded on a blockchain. It doesn't encrypt the asset file or prevent copying — it only proves who holds the token. The image file usually sits off-chain, with only its address in the token. Buying a token doesn't bring the copyright with it, and technology alone can't stop someone from minting another NFT of the same picture.

When grown-ups say it

NFT
The certificate nobody can quietly alter, stuck to a picture. It proves who holds this token, not the artwork itself.
Blockchain
The ledger everyone keeps together. The very ledger the certificate is written into.
Non-Fungible
Meaning there's only one in the whole world. Its serial number means it can't be swapped for another token.
Virtual Asset
Property that exists only digitally. Korean regulators generally exclude collectible NFTs from virtual assets, but ones issued in bulk or used like payment can count as virtual assets.
Digital Copyright
The right that's meant to stop copying. An NFT doesn't substitute for this right.
Fintech
Financial services combined with IT. NFT trades can use this same kind of payment tech too. → Fintech & simple payment
Quantitative Risk Analysis
A way to score value swings with numbers. An NFT's wild price swings get sized up the same way. → Quantitative Risk Analysis
4th Industrial Revolution
The big wave made when many new technologies combine. The story that frames this whole exhibit hall. → the 4th Industrial Revolution
Next story
The Eye That Measures Distance with Lasers →
Want another term as a picture book? Request →