On May 15, 2018, Bitcoin Cash developers increased the block size four fold from 8 MB to 32 MB. Along with the block size increase they also reactivated Satoshi’s OP_Codes that were disabled in the original version of Bitcoin. OP_code stands for “Operation Codes” which allows simplified smarts contracts. By increasing the block size Bitcoin Cash allows faster transaction speed with cheaper transaction fee.
Bitcoin Cash performs regular hard forks every 6 months. Hard fork is a drastic change to a cryptocurrency base code that is not backward compatible. On November May 15 Bitcoin Cash split into two different blockchains. When there is a disagreement among a crypto community hard forks result in chain split. The two separate blockchain that forked from Bitcoin Cash are Bitcoin ABC and Bitcoin SV (Satoshi Vision). There was a disagreement between two development teams, Bitcoin ABC and Bitcoin SV on how to best scale Bitcoin Cash. Bitcoin ABC is the main Bitcoin Cash node software. Bitcoin ABC is supported by Roger Ver and his mining pool Bitcoin.com, enabled smart contract features, oracle services, and scaling improvements. Bitcoin SV is led by Craig Wright, who has previously declared himself Satoshi Nakamoto. Bitcoin Cash ABC version is considered as the “real Bitcoin Cash” (BCH) which took the original BCH ticker symbol. Some exchanges refused to maintain the BCH ticker and going with BAB or BCHABC. Bitcoin SV takes BCHSV or BSV ticker.
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