The remaining 99% comes from block rewards—the new Bitcoins generated to incentivize miners to secure the network. However, these block rewards are cut in half every four years in an event known as the Bitcoin halving.
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Security Expert Calls Bitcoin a ‘Time Bomb’—Did Satoshi Nakamoto Make an Oopsie?
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Justin Drake explained that the remaining 99% of miner income currently comes from block rewards, which are newly issued bitcoins distributed to miners and designed to halve every four years until the supply cap is reached
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