Interactive guide · Live data

NFT
digital ownership, proven

Non-fungible tokens prove you own a unique digital item — art, music, collectibles, tickets. Discover how they work, how to buy them, and the risks to know.

Unique & scarce Ownership on-chain Trade 24/7

Total market cap

$2,28 T

▼ -0,95 % / 24h

Live

Volume 24h

$52 206 111 113

BTC Market dominance

56,5%

ETH Market dominance

10,0%

active cryptocurrencies

18 374

Start the guide

Part 1 · The basics

What is an NFT?

NFT stands for Non-Fungible Token. “Non-fungible” means unique: unlike a bitcoin (where all units are identical), each NFT is one of a kind and cannot be exchanged for another one-to-one.

Most NFTs live on Ethereum via the ERC-721 standard, and each token carries metadata linking it to a digital asset — an image, a video, a song — plus proof of who owns it, recorded on the blockchain.

1 Provenance

Ownership history is public and verifiable on-chain from the very first mint.

2 Scarcity

Creators decide supply: a single 1-of-1, a limited collection, or an open edition.

3 Royalties

Creators automatically earn a percentage on every secondary sale, forever.

The 2021 boom : In 2021, the NFT market exploded to over $20 billion in volume. Collections like CryptoPunks and Bored Apes became cultural icons, and artists earned royalties they never could with traditional galleries.

Part 2 · How it works

How an NFT is created and traded

From minting to resale, here is the life of an NFT.

1

Minting

The creator publishes a smart contract (ERC-721) and “mints” a token that points to the digital asset and its metadata.
2

Ownership

The token is transferred to the buyer’s wallet address. Ownership is recorded permanently on the blockchain.
3

Marketplace

NFTs are listed on marketplaces like OpenSea, Blur or Rarible, with an asking price or an auction.
4

Buying

A buyer sends the payment in ETH (or a stablecoin); the smart contract transfers the NFT instantly.
5

Royalties

On each resale, a percentage (often 5–10%) is automatically paid to the original creator.

Part 5 · The models

NFT vs fungible token

Why one ETH is interchangeable but each NFT is unique — see the comparison.

PoW

Security 95/100

Decentralization 90/100

Energy 15/100

Speed 20/100

PoS

Security 88/100

Decentralization 75/100

Energy 95/100

Speed 60/100

DPoS

Security 70/100

Decentralization 45/100

Energy 98/100

Speed 95/100

Part 6 · The sentiment

Fear & Greed index

The Fear & Greed index (0 = extreme fear, 100 = extreme greed) measures crypto investor sentiment. Current value:

Fear

30-day history

Part 7 · The data

Live market

Top cryptocurrencies and their 24h change. Data refreshed every 3 minutes (CoinGecko).

#	Coin	Price	24h	Mkt cap	Volume 24h
1	Bitcoin BTC	$64 327	-1,20 %	$1,29 T	$21,19 Md
2	Ethereum ETH	$1 892	-1,70 %	$228,28 Md	$7,46 Md
3	Tether USDT	$1,00	+0,00 %	$183,10 Md	$34,82 Md
4	BNB BNB	$607,47	+0,50 %	$80,88 Md	$618,4 M
5	USDC USDC	$1,00	+0,00 %	$72,10 Md	$8,25 Md
6	XRP XRP	$1,01	-2,50 %	$63,00 Md	$1,09 Md
7	Solana SOL	$76,16	-0,90 %	$44,36 Md	$1,39 Md
8	TRON TRX	$0,34	+1,70 %	$31,91 Md	$460,3 M

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Part 8 · The ecosystem

Types of NFTs

Beyond profile pictures, NFTs cover many categories.

Art & PFP

Profile pictures & digital art
CryptoPunks, Bored Apes
Curated drops
Highest visibility
Speculative

Collectibles & gaming

Trading cards, in-game items
Ownable & transferable
Used in games
Community events
Utility-driven

Utility & access

Event tickets, memberships
Real-world claims
Loyalty programs
Verify authenticity
Growing adoption

Part 9 · The applications

What are NFTs used for?

From art to tickets, NFTs attach real-world utility to digital ownership.

Digital art

Artists sell verified originals and earn royalties on every resale.

Authenticity

Luxury goods and certificates of authenticity tracked as NFTs.

Event tickets

Fraud-resistant tickets that can be resold with creator fees.

Gaming

Items and skins owned by players, tradable outside the game.

Identity & credentials

Diplomas, memberships and licenses as verifiable NFTs.

Music & film

Artists fund projects and share royalties directly with fans.

Part 10 · The verdict

Advantages & Risks

Advantages

✔Proves ownership and provenance publicly.
✔Creators earn royalties automatically forever.
✔Liquidity: trade art and collectibles 24/7 worldwide.
✔Programmable utility (access, memberships, games).
✔Opens new funding models for creators.

Risks

✕High volatility; most NFTs lose value after hype.
✕Gas fees and platform fees eat into profits.
✕Scams: fake collections, phishing and rug pulls.
✕Copyright and intellectual-property gray areas.
✕Environmental concerns (improved by proof of stake).

Part 11 · The vocabulary

Quick glossary

The NFT terms you need to know.

Mint

The act of creating a new NFT through a smart contract.

Fungible

Interchangeable — every unit identical. BTC and ETH are fungible.

Metadata

The data describing the NFT (name, image, traits) usually stored off-chain with an on-chain link.

PFP

Profile picture NFT collection (CryptoPunks, Bored Apes).

Gas

Ethereum network fees paid to mint, buy or transfer an NFT.

Royalty

A percentage the creator earns on each secondary sale.

Floor price

The lowest asking price for an NFT in a collection.

Airdrop

Free NFTs distributed to holders of a collection.

Rug pull

A scam where a project disappears with investor funds.

Whitelist

Pre-approved addresses allowed to mint early.

Metadata URL

The on-chain link pointing to an NFT’s off-chain metadata.

Collection

A set of NFTs sharing one smart contract and style.

Part 12 · Questions

NFT FAQ

What does NFT stand for?

Non-Fungible Token: a unique digital token that proves ownership of a specific item on a blockchain.

Do I own the copyright if I buy an NFT?

Not automatically. Owning an NFT usually gives you ownership of the token and often a usage license, but the copyright stays with the creator unless explicitly transferred.

How do I buy an NFT?

Create a wallet (MetaMask), fund it with ETH, connect to a marketplace like OpenSea, and buy. You then hold the NFT in your own wallet.

Can I print/save the image of an NFT?

You can download the image, but that does not give you ownership. Ownership lives in the on-chain token, which only the holder controls.

Why would someone pay for something they can copy?

The same reason people pay for original paintings rather than prints: verified scarcity, provenance and community. The value is in the on-chain proof, not the pixels.

Are NFTs a good investment?

Most NFTs lose value after hype, and liquidity is low. Treat them as collectibles first and investments second — never spend what you cannot afford to lose.

What is an NFT floor price?

The lowest current asking price in a collection. It is the cheapest you can buy into a specific collection right now.

Do NFTs hurt the environment?

Early NFTs were mined on proof-of-work Ethereum, which was energy-intensive. Ethereum moved to proof of stake in 2022, cutting energy use by over 99%, so NFT energy concerns have largely disappeared.

This page is for education only and is not financial advice. NFTs are highly volatile.

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Quick links

Part 1 · The basics Part 2 · How it works The chain of blocks, live Hashing & immutability Proof of work Consensus comparison Fear & Greed index

NFT digital ownership, proven