最新报道:Bitcoin mining competition intensified in September 2025 as network difficulty hit a record 142.34T, squeezing profit margins and reducing production for most major miners. Marathon Digital Holdings led with 736 BTC mined, while Cango, CleanSpark, and Riot Platforms saw declines to 616 BTC, 629 BTC, and 445 BTC respectively. Large miners with strong balance sheets maintained stability, but smaller operators faced pressure from rising costs and a proposed New York bill taxing mining revenue to subsidize resident utility bills.