Bitcoin Hash Rate Drops 19%, Setting Record for Longest Decline in History

The 30-day average hash rate of Bitcoin has decreased by 19% since November 2025, falling from 1108 EH/s to 898 EH/s. Data from Glassnode shows that this nine-month decline is the longest in the network's history. This drop in hash rate coincides with the largest capital migration among mining companies, which hold over $70 billion in AI contracts. Some of the power capacity originally used for Bitcoin mining has shifted to AI hosting, making it potentially difficult to return.

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