Token
A token is a digital asset created by a smart contract on top of someone else's blockchain. It can act as money, a stake in a project, access to a service or an NFT.
How it works
You do not need your own blockchain to launch a token. You deploy a smart contract, for example on Ethereum, which keeps a table of "address: balance" plus the transfer rules. That is why there are tens of thousands of tokens and a new one can be created in minutes.
Tokens come in many kinds: stablecoins like USDT and USDC track the dollar, utility tokens unlock features of a service, governance tokens give voting rights, and NFTs are unique tokens. Most follow a shared format (a standard) such as ERC-20, so wallets and exchanges handle them the same way.
Keep in mind that the contract sets the rules. The contract owner may be able to mint new tokens, freeze addresses or change fees. That is not always bad, but you should know it before you buy.
You receive 50 USDT on Ethereum. Nothing actually travels to your wallet: the USDT contract lowers the sender's balance by 50 and raises yours by 50. The sender pays the gas for this in ETH.
The most dangerous mistake is buying a token by its name or ticker. Anyone can create a token named after a famous project. Check the contract address against the project's official site or a block explorer, and never trust links sent in private messages.
Questions and answers
What is a token in simple terms?
It is a digital unit issued by a program (a smart contract) on an existing blockchain. It can stand for anything: money, access, a vote or an item.
What is the difference between a token and a cryptocurrency?
A token is a crypto asset too, but it has no blockchain of its own. Coins like BTC and ETH run their own networks, while tokens live inside another one.
How do I check a token is real?
Find the contract address on the project's official site and compare it with what your wallet or exchange shows. A matching name proves nothing.
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Updated: 2026-10-19