The Bitcoin network hash rate has just dropped to its lowest level in four months, first falling below 1 zetahash per second. Interestingly, despite the decrease in hash rate, Bitcoin mining profitability has shown signs of recovery recently. The main reason for this situation is that many miners are undergoing infrastructure shifts—from switching power sources to upgrading mining equipment. This transition temporarily affects the network's total processing capacity but reflects the industry's long-term optimization trend in Bitcoin mining.