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Since bitcoins can only be that can be mined is limited to 21 million units.
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Where Did Bitcoin Come From? � The True StoryBy , 21 million Bitcoins will be mined, enhancing the network's scarcity and value. � Miners' Bitcoin rewards decrease after every , Key Takeaways. The maximum total supply of Bitcoin is. There will never be more than 21 million bitcoin. This limit, known as the hard cap, is encoded in Bitcoin's source code and enforced by nodes on the network.