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Bitcoin's mining difficulty — the network's self-regulating measure of how hard it is to earn the right to add a new block — fell 10% in its latest scheduled recalibration, the second-largest downward adjustment of 2026.
The drop is a signal that a meaningful share of the machines competing to mint new $BTC have gone dark, handing those still running a larger cut of the block reward.
The catch: that reward still isn't worth enough to cover what it costs to produce.
What a Difficulty Adjustment Actually Does The Bitcoin protocol recalibrates difficulty roughly every two weeks to keep its average block time near ten minutes, regardless of how much computing power is aimed at the network.
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