Bitcoin’s mining difficulty fell by 28% today, the largest drop in the network’s history. The decline shows the severe impact of China’s recent crackdown on its Bitcoin miners.
Mining difficulty measures the computational power required to validate Bitcoin transactions and consequently how hard it is to earn new Bitcoin. The network adjusts the difficulty each fortnight to reflect the level of competition among miners. Lower mining difficulty indicates less competition.
Today’s difficulty mining drop follows China’s crackdown on Bitcoin miners, which were responsible for an estimated 65% of the network’s hash rate. Well before the government started to shut down miners last month, Bitcoin’s hash rate peaked at 198 EH/s (i.e. a lot) on April 15. After the crackdown, the hash rate sunk to 89 EH/s.
Chinese miners are now emigrating en masse or selling mining machines to foreign mining farms. But until China’s Bitcoin miners find new homes, non-Chinese miners stand to benefit from the reduced difficulty, which makes it cheaper and easier to mine Bitcoin.
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