Скачать или смотреть What are ERC20 Tokens? The Standard That Tamed the Ethereum Wild West

We hear about ERC20 tokens constantly, but what actually are they? In this video, we explain how these tokens rely on the Ethereum blockchain and its virtual machine rather than existing as independent currencies.
In this video, you will learn:
• The "Wild West" Problem: Before ERC20, developers had to "reinvent the wheel" for every project. This lack of structure meant exchanges and wallets needed custom code for every single token.
• The Solution: How the community proposed a standard interface that allows different applications to talk to each other instantly.
• The 6 Mandatory Functions: We break down the technical requirements every ERC20 token must have, including totalSupply, balanceOf, transfer, and the complex approve and allowance methods.
• The Risks: From immutable bugs that cannot be fixed to the infamous flaw that caused over $3 million to be lost by December 2017.
We also discuss the massive ICO boom of 2017, where over $4 billion was raised, and look at the future with the proposed ERC223 standard.