It wasn't the first attempt to fork the bitcoin blockchain, but it was certainly the most memorable.
As reported earlier today, Bitcoin Cash, a new cryptocurrency, was created when a group of miners "forked" from the main bitcoin blockchain – in short, they switched to a new, incompatible software that changed the rules by which the network would function.
Over the course of the day, miners backing the project succeeded in officially branching off, ultimately adding blocks to the separate blockchain, and in the process, building what they believe could come to be a growing economy centered around its development.
In doing so, they also marked the end of a controversial effort that began as just one of many ways to chart a new technical roadmap in the face of a wide range of alternatives.
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https://www.coindesk.com/bitcoin-forks-play-play-blockchains-big-split/
