Bitcoin 7-day average hash rate drops to 915.8 EH/s, hitting a three-week low

Odaily report: On September 26, Bitcoin's 7-day average hash rate dropped to 915.8 EH/s, hitting a three-week low, decreasing by approximately 34.86 million TH/s over the past week; miner reserves decreased by 1,530 BTC during the same period. Some mining companies are shifting hash rate to AI contracts, with Hyperscale Data having shut down its Michigan mining facility to prepare for AI operations; Ethiopia has cut power supply to miners due to declining reservoir water levels.