Beginner’s Guide: What is ERC20?

Ether, also known as ETH, is a whole ecosystem where people can create pretty much anything, from complex decentralized applications (Dapps) that work seamlessly using intelligent contracts to custom tokens (ERC-20 tokens), non-fungible tokens (NFTs), and anything else you can think of. It may have a very scientific sound, but in reality, it’s not that difficult to grasp.

Perhaps, it will open the doors of innovation for your company, your personal life, and any other entrepreneurial endeavors you pursue. Let’s get our feet wet in the decentralized universe, shall we?

What Is Ethereum?

Bitcoin was there at the beginning when everything began. A network centered on a cheerful coin of orange color that ultimately managed to win over the affection and support of millions of people worldwide. Now, for the first time, we have the opportunity to use an alternative payment system that operates independently of national boundaries, permissions, and the oversight of government gatekeepers.

Regardless of how beneficial the orange coin may be, it can only permit us to do two things:

  • Move something of value from location A to location B.
  • Invest in Bitcoin in order to capitalize on its price appreciation over the long term.

This was not a choice that Vitalik Buterin could make. This young programmer desired additional functionality from the newly developed blockchain training program. As a result, he and his team set out to design something that is capable of doing more than what Bitcoin is capable of doing on its own, and in 2014, they created Ethereum. The question now is, what precisely is Ethereum?

It is a decentralized network that anyone is free to use and can be built upon by anyone. It’s a virtual set of Lego blocks that’s been distributed to everyone on the planet so that we can bring all of our digital fantasies and possibilities to life. Tokens, artwork, decentralized applications, digital documents, and everything else imaginable can be stored on the blockchain. On this network, anything is possible, and just like Bitcoin, it is accessible to anyone with an internet connection.

The Ethereum network is comprised of millions of separate computers that are all connected to function as a single entity (a giant supercomputer). We are able to use this computer for any conceivable job, and we can “hire” the massive computational power it possesses by paying “gas” in the form of Ether, the native token for Ethereum (ETH).

What are ERC20 Tokens?

The acronym “ERC20” stands for “Ethereum Request for Comment,” and the number “20” refers to the recommendation identifier for this protocol. Any cryptocurrency or nft token operating on the Ethereum blockchain is considered an ERC20 token.

There are a considerable number of them! Because Ethereum was intended from the beginning to serve as a foundation upon which other cryptocurrencies could be built. On the Ethereum blockchain platform, there are currently hundreds of different cryptocurrencies and blockchain training projects running. And if you really desired to, you could create your very own!

To put it more simply, an ERC20 nft token is intended to function as a blockchain-based asset, much like Bitcoin and Ether are designed to. The most significant distinction lies in the fact that this ERC20 token is generated on the Ethereum blockchain platform.

Additionally, it makes use of the identical blockchain to store its data. It is kept in association with an Ethereum address, which is also the address that is used for the transaction.

It is difficult to adequately describe the magnitude of the change that ERC 20 tokens have brought about in the cryptocurrency world. They are solely responsible for several billion dollars worth of transactions within the industry. They were a noteworthy element in the process of bringing cryptocurrencies into the mainstream.

What is Gas?

On the Ethereum blockchain platform, the term “gas” refers to the fee or pricing worth that must be paid in order to successfully execute a transaction or bear out the terms of a contract. Commonly referred to as gwei and sometimes also called nanoeth, the gas is used to dispense aids to the Ethereum virtual machine (EVM). This allows for decentralized applications such as smart contracts to self-execute in a secure but decentralized manner. The gas is priced in tiny fractions of ether cryptocurrency (ETH).

The actual price of the gas is decided by supply and demand between miners on the web, who can choose not to process a transaction if the gas price does not meet their point, and network users who are scrutinizing for processing power. Miners have the capacity to decline to process a transaction if the gas price does not meet their threshold.

Importance Of ERC20

Ethereum’s ERC stands for “Ethereum request for comment,” and “request for comment” is a similar idea to that created by the Internet Engineering Task Force to express critical technical remarks and requirements to a group of developers and end users.

There has been a long history of new tokens being created using the ERC20 standard in the cryptocurrency industry. ICOs and crowdfunders have taken a particular liking to it. As of right present, there are tens of thousands of different tokens that operate on the ERC20 protocol.

Non-fungible tokens (NFTs) have been created using many ERC20 smart contracts for initial coin offerings (ICOs). These nft tokens can be used in a variety of ways (ICO). An initial coin offering (ICO) can be thought of as the stock market’s version of an initial public offering (IPO). An ICO (initial coin offering) is a mechanism for a crypto firm to raise money for a new cryptocurrency, decentralised app, or service.

It has been reported that ERC20 tokens dominated the ICO bull market in 2017 and that many of the most successful cryptocurrencies were built on the ERC20 standard, according to Yahoo! News. With its five-day ICO raising over $185 million in funding, the ERC20-based coin EOS, for example, continues to be popular. Another is Bancor (BNT), which raised $153 million from the sale of its ERC20 token. Several additional ERC20-compliant tokens have raised millions of dollars in ICOs, as has the Ethereum blockchain

ERC20 Token Standards 

The official protocol that promotes and offers the necessary upgrades to the Ethereum platform is known as the Ethereum Request for Comments, or ERC for short. It is a list of standards that facilitates a set of definitive commands that a crypto token needs to implement on the Ethereum network in order for it to be accepted as an ERC20 token. This list was created so that ERC20 tokens could be more easily standardized.

The ERC20 is neither a kind of software, a kind of blockchain platform technology, or a special piece of code. It is simply a piece of information. Rather, it is a set of technical requirements that a newly created token on the Ethereum network must satisfy in order to be valid.

In addition, when we discuss ERC20 tokens, we are referring to a cryptocurrency that was developed on top of Ethereum blockchains. Ethereum blockchains are the platform of smart contracts that are powered by Ether, and ERC20 tokens are currently ranked as the second most sought-after digital currency in terms of market caps. The following is a list of the standard functions that are included in its protocol standard:

  • Changing the ownership of the tokens
  • Investigate the current balance of the token at a particular address.
  • The total number of tokens in supply

The ERC20 Token standards also describe the fundamental mechanisms that a token ought to have in order for it to be tradable after it has been released into circulation.

Functions of the ERC20 Token Standards

Tokens constructed in accordance with these specifications are capable of performing the following functions:

  • Total Amount: The following section offers details regarding the total supply of tokens that are available.
  • Balance Of is a function that delivers data regarding the current financial standing of the owner’s account.
  • Transfer: The purpose of this function is to send a certain amount of tokens to a given address. The number of tokens to send can be specified.
  • Transfer From: This function is the vehicle that moves the specified tokens from one address to another. It receives the tokens from the provided address.
  • Approve: This function comes in helpful for the user if the user wishes to withdraw a particular number of tokens from the account that has been specified.
  • Allowance: This function is critical since it is responsible for repaying a predetermined quantity of tokens from the spender to the owner.

These functions have the ability to initiate the subsequent two actions, which are known as transfer and validation. The validation event takes place whenever authorization is needed, but the transfer event happens whenever tokens are moved from one person to another.

Best ERC20 Tokens

If we look closer, we find that the Ethereum blockchain has seen the introduction of a sizable number of ERC20 tokens. The following are the best:

Best ERC Tokens


Many in the blockchain development industry believe that ERC20 is constrained in some way, despite the fact that new coins created to its specifications have received considerable adoption. As a result, various alternate token standards have been proposed since the introduction of ERC20. ERC223, for example, tries to address an issue with ERC20’s approval and transfer components.

A third option is ERC621, which has the same fundamental functions as ERC20 but adds the ability to increase or reduce the total quantity of tokens. It is possible for a token holder to authorize a third party’s expenditures using ERC 827. ERC20 serves as the foundation for many of these new protocol proposals.

If you want to keep up with the trends of blockchain industry, join our communities on Discord, Reddit and Telegram.

Related Posts

What is the Metaverse Step-by-Step Beginners Guide 2023

What is the Metaverse? Step-by-Step Beginners Guide 2023 [UPDATED]

Since Facebook CEO Mark Zuckerberg announced the rebranding of Facebook Inc. to Meta Inc., the topic has piqued everyone’s interest. Meta Inc.’s Metaverse roadmap is evolving, and with the recent acquisition of 3D Smart Glasses Manufacture Luxexcel, the future looks brighter than ever. But what is it, and how does it relate to gaming, automobiles, real estate, and the entire industry investing in it?

Read More »

Join 30000+ Certified Professionals & Get Ahead In Your Career!

Invest In Your Learning Today!

Blockchain Council Certified Professional
Copyright © 2022 Blockchain Council | All rights reserved

Subscribe to Our Newsletter

To receive Offers & Newsletters

    Invest in your learning!
    Here's a coupon code tailored just for you

    50,000+ Professionals certified so far by Blockchain Council



    expires in

    Enroll today in any of the popular certifications sought after by the industry.