ChainCatcher report, according to BeInCrypto, since November 2025, Bitcoin’s 30-day average hash rate has declined by 19%, dropping from 1,108 EH/s to 898 EH/s. Glassnode data shows this nine-month decline is the longest in the network’s history. This downturn coincides with the largest capital reallocation in mining history, as mining companies now hold over $70 billion in AI contracts, with some electricity capacity previously allocated to Bitcoin mining redirected toward AI hosting—and potentially unable to return.
Bitcoin hash rate drops 19% over nine months, longest decline in history
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Summary
Bitcoin’s hash function performance has weakened, with the 30-day average hash rate declining 19% since November 2025, from 1,108 EH/s to 898 EH/s. This nine-month decline is the longest on record, according to Glassnode. Mining companies now hold over $7 billion in AI contracts, as some energy previously allocated to Bitcoin mining shifts toward AI hosting. Proof of History (PoH) and other innovations may face challenges if this trend continues.
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