Crypto Glossary

Posted on September 13, 2021 in


ERC-20 is one of the most important Ethereum tokens. In terms of token implementation, it has emerged as the de facto standard, and it is widely used for smart contracts on the Ethereum blockchain, especially when it comes to token implementation. The rule set for all tokens built on Ethereum, which is defined by ERC-20, also holds true.

What exactly is ERC-20?

When it comes to some aspects, ERC-20 is analogous to Bitcoin, Litecoin, and any other cryptocurrency; ERC-20 tokens are blockchain-based assets having a monetary value that can be exchanged and received by anybody. However, the primary difference is that ERC-20 tokens are created on the Ethereum network, as opposed to being produced on their own blockchain.

ERC-20 and Ethereum

ERC-20 may be familiar to Ethereum followers. You may sell, purchase and even exchange tokens in the Ethereum blockchain ecosystem – ERC-20 tokens are among the most popular. 

As a matter of fact, ERC-20 is one of the most significant Ethereum-based tokens available. As a token form, it also represents a set of criteria for digital tokens. Smart contracts are implemented with this token and cover a set of rules that all Ethereum-based platforms must obey.

ERC-20 Simplified

In essence, ERC-20 is comparable to other cryptocurrencies such as Bitcoin, Ether, and others. However, you must realize that Ether and ERC-20 are not synonymous. IIn reality, Ether is the primary currency of the Ethereum network, whereas ERC-20 is a specification for a particular sort of token. As a result, people can utilize this standard to generate new ERC-20 tokens, each with a unique token name. Moreover, only Ethereum-based platforms will allow the use of ERC-20 tokens.

ERC-20 Standard Rules

ERC-20 rules and standards are put in place in the case where any smart contract chooses to use the token. The rules are rigid and a smart contract will need to follow them in order to be able to be identified as an ERC-20 token. 


  • allowance
  • approve
  • transferFrom
  • transfer
  • balanceOf
  • totalSupply

Non-mandatory Standards

  • Token Name
  • Decimal (Max: 18)
  • Symbol

Related Articles

We offer investors a variety of opportunities in the digital assets industry. Our innovative platform provides financial access for anyone seeking investment returns anywhere, anytime. Our ecosystem aims at making finance an everyday enriching activity.

ZEI is currently registered under and listed by Bappebti as a candidate merchant. To date, the Indonesian government has established crypto assets as commodities which can be determined as the subjects of futures contracts, which can be traded through the Futures Exchange (of crypto assets).


Before you use the Services, you must be aware of the following:

  1. You should not transact Digital Assets if you are not familiar with Digital Assets. Transacting Digital Assets may not be suitable for you if you are not familiar with the technology of the Services that are provided.
  2. You should be aware that the value of Digital Assets may fluctuate greatly. You should buy Digital Assets only if you are prepared to accept the risk of losing all of the money you put into such Digital Assets.
  3. You should be aware that although we strive to provide you with excellent service, we do not guarantee that the Site or Services will be available without interruption.
  4. Digital Assets held in your Hosted Wallet and funds in your Fiat Wallet are not subject to the Indonesian insurance or guarantee scheme as provided by the Indonesian Deposit Insurance Corporation (Lembaga Penjamin Simpanan).