2. ERC 20 Tokens:
The launch of Ethereum in 2015 marked the beginning of a new era for
blockchain .
While previously the technology's usefulness was largely limited to
cryptocurrencies such as Bitcoin , Ethereum was the world's first smart contract
platform.
In the years since its launch, a huge number of new projects have emerged
running on the erc20 token development .
All ERC20 tokens are issued according to the same standard, which allows
them to work on the Ethereum blockchain, in its ecosystem.
3. What are ERC 20 tokens and smart
contracts?
Like Bitcoin, Ethereum is a chain of blocks consisting of transactions spanning
their entire history from the moment the block was created.
The Ethereum Virtual Machine, or EVM, is an additional layer of Ethereum. Anyone
can program a smart contract on the Ethereum platform thanks to EVM.
A smart contract is simply a piece of code written in Solidity, an Ethereum
programming language that works using “if-then-then” logic. It functions much
like a vending machine.
4. What are the rules governing the
ERC20 token standard?
The ERC20 token standard is relatively simple and includes nine token
issuance rules. Six of them are mandatory and must be applied in all cases.
Three of them are optional, although at least two of them are usually used.
1.Optional Rules 2.Mandatory rules
5. Optional Rules
Mandatory rules
Total circulation
Balance (BalanceOf)
Approve
Transfer
Allowance
Transfer From
Token name
Ticker token
Decimal
Thus, if any implementation of an Ethereum token complies with these rules, they
used to create erc20 token standard.
Token issuers can introduce additional programming rules that determine the
behavior of the tokens.
6. projects using the ERC 20 token
standard:
According to Etherscan, there are more than 350,000 ERC 20 token contracts on
the Ethereum blockchain . It's fair to say that at least some of them will die out and
not stand the test of time.
Here are some of the main types and categories of projects:
Stablecoins Utility Tokens
DeFi Tokens