Bitcoin Mining Profitability Falls as Network Hashrate Surpasses 1.1 ZH/s

Bitcoin miners face shrinking profit margins after the network hashrate reached a record 1.1 zettahashes per second in October 2025. Hashprice dropped to approximately $35 per PH/s by November, the lowest level in over five years. Payback periods for new mining equipment now exceed 1,200 days as competition for block rewards intensifies.