Bitcoin Mining Difficulty Falls 9.55% as Hashrate Slides After June Price Crash

TLDR:

• Bitcoin mining difficulty dropped 9.55%, marking the second-largest downward adjustment recorded in 2025.
• Network hashrate fell from near 1 ZH/s in May to roughly 861 EH/s around June 10 before partially recovering.
• The difficulty reset is expected to lift BTC output per active hashrate by over 9%, pushing hashprice above $30/PH/s.
• Power reallocation toward AI and HPC workloads is driving structural hashrate decline beyond short-term price pressure.

Bitcoin mining difficulty has dropped by approximately 9.55%, marking the second-largest decline recorded this year.

The adjustment follows a sustained slide in network hashrate after bitcoin’s price briefly plunged to around $60,000 in early June before recovering to near $64,000.

The reset lowers the computational work required to mine a block, offering direct relief to miners squeezed by thinning margins. Output per active hashrate is set to rise by more than 9% as a result.

Hashrate Collapse Triggers Steep Difficulty Adjustment

Bitcoin’s network hashrate had been holding near 1 zettahash per second (ZH/s) at the close of May. It then fell sharply to approximately 861 exahashes per second (EH/s) around June 10, before recovering moderately to about 894 EH/s in recent days.

That sustained decline over the two-week epoch triggered Bitcoin’s automatic recalibration mechanism. The resulting 9.55% drop is now confirmed as the second-largest downward difficulty adjustment of the year.

The adjustment directly reshapes mining economics across the network. A lower difficulty setting means each unit of active hashrate now produces more bitcoin per day than it did before.

That increase in output per hashrate is expected to push hashprice back above $30 per petahash per second. Hashprice had fallen below that level following the early June price crash, tightening margins across the industry.

The $30/PH/s threshold is a closely watched line for operators managing older or less efficient fleets. According to TheEnergyMag, the difficulty drop is expected to increase BTC output per active hashrate by over 9% and may also push mining hashprice back above $30 per PH/s.

Below that mark, sites running legacy hardware or carrying higher electricity costs move closer to gross breakeven before overhead and debt are factored in.

Texas-based miners likely played a role in the hashrate volatility as well. June marks the start of the state’s 4CP season under ERCOT, when large power consumers reduce load during four critical summer peak intervals to lower their transmission cost allocation for the following year.

That mechanism pushes bitcoin miners to curtail operations during potential peak windows, temporarily removing significant hashrate from the network regardless of real-time power prices.

AI and HPC Redeployment Pulls Capacity from Bitcoin Mining

Not all of the hashrate decline was tied to price pressure or seasonal curtailment. Several publicly listed miners have been actively unplugging rigs and redirecting power capacity toward high-performance computing and AI data center workloads.

That structural shift removes bitcoin hashrate even when the underlying power infrastructure remains fully operational and under contract.

The pivot toward HPC and AI reflects a deliberate strategy by major mining companies to diversify revenue. As TheEnergyMag reported, beyond the shutdown of older mining rigs due to profitability pressure, another key driver of the hashrate decline is the reallocation of power capacity toward high-performance computing and AI data centers.

Long-term computing contracts with enterprise clients offer more stable cash flow compared to bitcoin’s variable hashprice environment.

Power capacity that once drove network hashrate is now being allocated to contracted AI workloads under a different business model entirely.

Several public miners have been unplugging mining rigs or slowing mining growth as they retrofit sites for contracted AI and HPC use, a strategy that can remove bitcoin hashrate even when the underlying power capacity remains in use. That transition is reshaping how mining infrastructure is deployed across North America.

The partial hashrate recovery seen in recent days points to some of the June decline being temporary. Curtailments tied to Texas’s 4CP window and short-term economic responses likely account for a portion of the drop rather than permanent fleet shutdowns.

Even so, the continued migration of mining infrastructure toward AI use cases adds lasting downward pressure on network hashrate heading into the second half of the year.

The 9.55% difficulty drop offers a meaningful reset for operators who held through the June pressure, with improved margins now expected in the current epoch.