Token

People often use "coin" and "token" as if they mean the same thing, and in casual talk that's mostly fine. But in crypto, a token has a more specific meaning. Understanding it helps you make sense of thousands of digital assets, from stablecoins to NFTs, that all live on blockchains they didn't build themselves.

What Does Token Mean?

A token is a digital asset that runs on another blockchain instead of having its own. For example, USDC and UNI are tokens on Ethereum, while ETH is Ethereum's native coin. Tokens are usually created with a smart contract that keeps track of who owns how many and sets the rules for sending them.

A good analogy is a theme park. The park itself is the blockchain, and its official currency is the coin. Inside the park, individual rides and shops might issue their own tickets, vouchers, or loyalty points. Those are like tokens: they work inside the park and follow its rules, but each one serves a different purpose.

Coins vs Tokens

The difference comes down to where the asset lives and what it's used for.

• Coins: Native to their own blockchain, like BTC on Bitcoin or ETH on Ethereum. They're typically used to pay network fees and reward those who secure the network.
• Tokens: Built on an existing blockchain. They rely on that network for security and use its native coin to pay transaction fees.

That last point surprises many beginners. To send an Ethereum-based token, you need a little ETH in your wallet to pay the gas fee, even if you're not sending any ETH.

How Tokens Work

Creating a token is much easier than creating a whole new blockchain, which is one reason there are so many of them.

Token Standards

Most blockchains have standards that define how tokens should behave, so wallets and apps can support them automatically. On Ethereum, the best known is ERC-20 for interchangeable tokens. Other standards cover unique items, like ERC-721 for NFTs. Different networks have their own equivalents.

The Token Contract

A token's smart contract works like a ledger. It records balances for each address and updates them when someone sends tokens. It may also include rules for creating new tokens, destroying existing ones, or pausing transfers. When your wallet "holds" tokens, it's really showing what that contract says your address owns.

Types of Tokens

Tokens can represent almost anything. Here are the most common categories you'll come across.

Stablecoins

Stablecoins are tokens designed to track a steady value, usually the US dollar. Many popular ones, such as USDC and USDT, are tokens that run on several blockchains.

Utility Tokens

These give you access to a product or service, like paying for storage, computing power, or features inside an app. Their usefulness depends on whether people actually want the service, so a token tied to an unused product may struggle to hold value.

Governance Tokens

A governance token lets holders vote on decisions about a project, such as fee changes or upgrades. Usually, the more tokens you hold, the more voting power you have, which means large holders can carry a lot of influence.

Non-Fungible Tokens

NFTs are unique tokens that represent one specific item, like a piece of digital art, a game item, or a ticket. Unlike regular tokens, no two are interchangeable.

Tokenized Assets

Some tokens represent ownership of real-world things, such as bonds, real estate, or gold. These are often grouped under real-world assets.

Why Tokens Matter

Tokens make it possible for projects to raise funds, reward users, build communities, and create new kinds of digital services without launching their own blockchain. They can be sent worldwide in minutes and plugged into other apps, such as exchanges and lending platforms, almost instantly.

Because they share common standards, tokens also work across a whole ecosystem. A new token on Ethereum can show up in your wallet, trade on decentralized exchanges, and be used as collateral in lending apps without each of those services building custom support. That shared foundation is a big part of why blockchains like Ethereum have grown so many apps.

Risks and Things to Watch For

Because anyone can create a token in minutes, the space is full of low-quality and outright fraudulent projects. Keep these points in mind:

• Fake copies: Scammers create tokens with the same name and symbol as popular ones. Always verify the contract address from an official source.
• Hidden rules: Some token contracts block selling or let creators mint unlimited supply.
• Wrong network: The same token can exist on multiple blockchains. Sending it on the wrong network can mean losing it.
• Value: A token is only worth what people are willing to pay for it, and many end up worthless.

Before buying any token, research who created it, what it's used for, and how its supply works. Remember that the token's value depends on both the project and the market, and prices can drop sharply. Checking how many tokens exist, who holds them, and how new ones are released can reveal a lot about whether a project is built to last.

Useful Links

• What are Ethereum token standards?
• What is cryptocurrency?
• What is an NFT?
• What is tokenomics?