Bitcoin has just posted its biggest mining difficulty increase in nearly 2.5 years.
At around 17:00 UTC on Tuesday, the network adjusted its difficulty level – a measure of how hard it is for miners to compete for block rewards on the blockchain – to 15.78 trillion.
The 14.95% rise is the biggest difficulty jump since January 2018, which saw a larger spike on the back of the 2017 crypto market bull run, data compiled by BTC.com shows.
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https://www.coindesk.com/bitcoin-mining-difficulty-biggest-jump-in-29-months