Bitcoin Cash (BCH) is a form of cryptocurrency much like Bitcoin. In fact, Bitcoin Cash was a fork of Bitcoin as a result of a chain split when a certain group of Bitcoin developers became dissatisfied with Bitcoin’s overall scalability direction.
As Bitcoin Cash is a result of a chain split from Bitcoin, it shares much of Bitcoin’s fundamental workings. In fact, they even share the same history. However, Bitcoin and Bitcoin Cash are not non-interoperable. You cannot send your Bitcoin Cash to the Bitcoin network as Bitcoin Cash and Bitcoin now exist on two different sets of blockchains.
One of the main differences between Bitcoin and Bitcoin Cash is the block size limit and transaction fee. As Bitcoin Cash has bigger blocks and arguably lower usage, sending Bitcoin Cash on the network is relatively cheaper and faster than if done on Bitcoin. In that sense, Bitcoin Cash does serve as a faster and more efficient form of digital currency as extolled by Bitcoin Cash proponents.
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