Bitcoin Cash is a hard fork of Bitcoin with a protocol upgrade to fix on-chain capacity. Bitcoin Cash intends to be a Bitcoin without Segregated Witness (SegWit) as soft fork, where upgrades of the protocol are done mainly through hard forks and without changing the original economic rules of the Bitcoin. Bitcoin Cash (BCH) is released on 1st August 2017 as an upgraded version of the original Bitcoin Core software. The main upgrade is the increase in the block size limit from 1MB to 8MB. This effectively allows miners on the BCH chain to process up to 8 times more payments per second in comparison to Bitcoin. This makes for faster, cheaper transactions and a much smoother user experience. Why was Bitcoin Cash Created? The main objective of Bitcoin Cash is to to bring back the essential qualities of money inherent in the original Bitcoin software. Over the years, these qualities were filtered out of Bitcoin Core and progress was stifled by various people, organizations, and companies involved in Bitcoin protocol development. The result is that Bitcoin Core is currently unusable as money due to increasingly high fees per transactions and transfer times taking hours to complete. This is all because of the 1MB limitation of Bitcoin Core’s block size, causing it unable to accommodate to large number of transactions. Essentially Bitcoin Cash is a community-activated upgrade (otherwise known as a hard fork) of Bitcoin that increased the block size to 8MB, solving the scaling issues that plague Bitcoin Core today. Nov 16th 2018: A hashwar resulted in a split between Bitcoin SV and Bitcoin ABC
BCAChain Using self-optimized POBC (goodwill certification) as the underlying consensus mechanism, and introducing the real world credit system to provide better operation and support for anonymous block chain network. BCAChain Focus on the new retail industry with rich landing scenarios, aiming at creating a supply chain traceability, quantifiable credit, transparent data, consumer shopping, membership services, precision marketing, centralized procurement scenarios in one, forming online e-commerce transactions, offline shopping experience, and building a new retail public chain ecology with multi-participation and multi-benefit. On November 8, 2018, BCAChain Foundation officially joined China Cloud System Industry Innovation Strategic Alliance as a governing unit. At present, BCAChain has completed the release of open source code at the bottom of block chain, wallet and DAPP application, and is expected to be on the main line in the second half of 2019.