What is an ERC-20 Token? Ethereum’s Fungible Token Standard
A token standard more specifically addresses parameters like token supply, transaction approval, and accessibility of the token’s data. Ethereum is a blockchain and platform that hosts smart contracts, decentralized applications, cryptocurrencies, and other projects. There are a variety of types of ERC-20 tokens, although each type is compliant with industry standards. ERC-20 tokens can include utility tokens, stablecoins (such as Tether, USDT, or USD Coin, USDC), security tokens, and others. Since this type of digital token is fungible, it can easily be exchanged for other types of tokens that represent an equivalent value and type. This method bears resemblance to the concept of an Initial Public Offering (IPO) in the stock market, where a company offers its shares to the public in exchange for investment capital.
What are ERC-20 Tokens?
Even though she isn’t sending ether, she must still pay a fee denominated in it to have her transaction included in a block. Her call is contained inside what appears to be a regular Ethereum transaction that pays 0 ETH to the token contract. The call is included in an additional field in the transaction, which specifies what Alice wants to do – in our case, transfer tokens to Bob. Whether you’re launching a new utility token, conducting a tokenized campaign, or experimenting with tokenized assets, we provide all the tools and infrastructure you need to succeed in the rapidly evolving world of Web3. To get started, just top up your wallet in euros, pounds, or dollars and use your MoonPay Balance to buy ERC-20 tokens like Tether, USDC, and SHIB.
ERC-20 Token Standard
It is perhaps easiest to think of ERC20 as a set of instructions that a smart contract on the Ethereum network must include. The Ethereum blockchain supports a variety of token standards, each designed to serve different needs within the ecosystem. Beyond the well-known ERC-20 standard, two other significant standards are ERC-721 and ERC-1155, which expand the functionality and types of assets that can be represented on the blockchain.
For example, the name and symbol can help identify the token so users don’t accidentally buy or send the wrong one. The team behind SHIB created a decentralized exchange, Shibaswap, where users can trade and stake their tokens. USD Coin is a fully collateralized stablecoin issued by a company called Circle. Like USDT, USDC is also pegged to the US dollar, which means the price of this ERC-20 token should remain at $1 at all times.
- Known for its higher transparency and regulatory compliance compared to USDT, USD Coin (USDC) has become a preferred choice for secure transactions and stable value storage.
- Called Ethereum Request for Comment (ERC) 20, the standard guides token creation so that tokens compatible with the Ethereum blockchain are interchangeable.
- Even though she isn’t sending ether, she must still pay a fee denominated in it to have her transaction included in a block.
- Some of the less common standards are the ones used in non-fungible tokens (NFTs).
They enable the creation of digital assets, including cryptocurrencies, loyalty points, and utility tokens, without developing an entirely new blockchain. The standard’s growing popularity resulted in many tokens being issued on Ethereum that supported several projects and decentralized applications. Within the Ethereum blockchain ecosystem, “gas” signifies the unit of measure used to quantify the computational effort required to conduct transactions or execute smart contracts. This allocation facilitates the autonomous operation of decentralized applications, including the execution of smart contracts, in a manner that is both secure and decentralized. Within the Ethereum ecosystem, ERC-20 tokens are crucial in smart contract functionality, tokenized rewards, and decentralized finance (DeFi).
To protect users, developers should enforce access controls to prevent unauthorized use of sensitive functions, conduct thorough contract audits, initiate bug bounty programs, and deploy tokens on testnets to identify bugs. ETH is the native cryptocurrency of the Ethereum blockchain, serving network operations and used to pay for transaction fees. ERC-20 tokens, on the other hand, are distinct tokens following the ERC-20 standard on the Ethereum network. LINK is a cryptocurrency that enables decentralized oracle networks to connect smart contracts with external data sources. By leveraging Ethereum’s robust infrastructure, an ERC20 token inherits the scalability and security features of the Ethereum blockchain, facilitating efficient transactions and smart contract execution. At its core, the ERC20 standard outlines the functions that a token contract must implement to be considered ERC20 compliant.
These are dutch harbor cruise reviews technical documents that outline standards for programming on Ethereum. They’re not to be confused with Ethereum Improvement Proposals (EIPs), which, like Bitcoin’s BIPs, suggest improvements to the protocol itself. ERCs instead aim to establish conventions that make it easier for applications and contracts to interact with each other. Learn what Gwei is and how it affects Ethereum gas fees so you can trade tokens, participate in DeFi, and send ETH more efficiently on the blockchain.
These functions play crucial roles in the operation of ERC20 tokens, from keeping track of the total supply of tokens to managing how tokens are transferred between addresses. Its simplicity and widespread adoption made it a definitive model for the majority of tokens on the Ethereum blockchain. Chainlink aims to connect the real world with blockchain through Decentralized Oracle Networks (DONs).
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If you launch an ERC-20 token and the network gets congested, its usability could be impacted. If you information architecture for web design held a BinanceAcademyToken, it wouldn’t matter what specific token you had. You could trade it for someone else’s, and they’d still be functionally identical, just like cash or gold. Typically, this is done via an Initial Coin Offering (ICO), Initial Exchange Offering (IEO), or Security Token Offering (STO).
#3. Binance Coin (BNB)
Do your own research before investing to reach your own conclusions on whether an opportunity is legitimate. As we explored in the previous section, ERC-20 tokens are highly customizable and can be tailored to many different applications. For instance, they can be used as in-game currency, in loyalty points programs, as digital collectibles, or even to represent fine art and property rights. Many crowdfunding events how crypto caused crash allow users to pay with a range of different digital currencies (such as BNB, BTC, ETH, and USDT). The respective balances are then allocated to the addresses provided by the users. For a typical fiat-backed stablecoin, an issuer holds reserves of euros, dollars, etc.
- All ERC-20 transactions require approval, and total token supply is strictly monitored to prevent duplicate tokens from entering circulation.
- Perhaps the most significant benefit of using ERC-20 tokens is their interchangeable nature.
- USDC coin is an ERC-20 token which operates as a stablecoin pegged to the US dollar, providing price stability in the volatile world of cryptocurrencies.
- It was created by the world’s biggest centralized exchange, Binance, following the ERC-20 token standard.
- Amilcar has 10 years of FinTech, blockchain, and crypto startup experience and advises financial institutions, governments, regulators, and startups.
Functions
These tokens can represent everything from financial assets akin to company shares, which might be regulated as securities in certain jurisdictions, to loyalty rewards and physical assets like gold or real estate. As widely accessible cryptocurrencies, ERC-20 tokens can be purchased and managed on both centralized and decentralized exchanges, as well as crypto wallets with integrated crypto swaps. Each platform has its pros and cons, with varying usability, security, and access to specific tokens. ERC-20 tokens play a vital role in the Ethereum ecosystem, providing a standardized framework for creating and managing a wide variety of digital assets. ERC-20 tokens can be tailored to serve a specific purpose or function, making them suitable for a wide range of applications, from utility tokens to stablecoins and governance tokens.
The history of the ERC-20 standard is deeply interlinked with the history of Ethereum itself. After seeing the success and potential of the Bitcoin network, Vitalik Buterin decided to create a platform that allowed for more than just value exchange. Most crypto wallets support ERC-20 tokens, but it’s a good practice to check if a wallet is compatible with them before transferring. Before completing a transaction in a DEX, verify the token’s smart contract address.
All ERC-20 token transactions are recorded on the Ethereum blockchain, ensuring transparency and traceability. This standard guarantees that assets follow a unified set of protocols, ensuring their smooth operation across the entire Ethereum network. It is a standard for creating interoperable tokens on the Ethereum Virtual Machine.
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