The popular cryptocurrency and blockchain system Ethereum is based on the use of tokens, which can be bought, sold, or traded. Ethereum was launched in 2015, and since then it has become one of the driving forces behind the popularity of cryptocurrency. In the Ethereum system, tokens represent a http://tnos-coins66432.blogdun.com/4403079/what-is-erc-20-and-what-does-it-mean-for-ethereum