Bitcoin Cash (BCH) is a cryptocurrency payment network designed to facilitate peer-to-peer payments for everyday transactions. It was created to address the scalability challenge faced by Bitcoin due to its limited 1 MB block size. A section of the Bitcoin community members had been pushing for larger blocks as early as 2010. However, seeing no result from their efforts, this group hard-forked Bitcoin Cash from the Bitcoin blockchain on August 1, 2017.
Bitcoin Cash operates as a decentralized network for BCH transactions. In July 2021, Bitcoin Cash introduced Smart Bitcoin Cash (SmartBCH), which is a side chain compatible with Web3 API and the Ethereum Virtual Machine (EVM).
The maximum total supply of Bitcoin Cash is 21 million, just like Bitcoin.