Bitcoin’s $84K rally isn’t saving miners as difficulty signals already flash caution
Summary
Bitcoin’s price of $84,751 more than offset the Sept. 19 difficulty increase of 4.16% in a theoretical calculation, lifting gross hashprice about 2.65% above an earlier modeled baseline. Fees contributed only 0.45% of block rewards in the measured sample, leaving miner revenue largely dependent on the subsidy and BTC price. An early estimate points to a 2.48% difficulty decline around Oct. 3, based on just 14.43% of the epoch and slower-than-target blocks. Because early block timing is noisy, this does not establish that miners are shutting down or moving equipment. The reprieve’s durability depends on BTC price, fees and how block times develop as the epoch progresses.
