最新报道:Bitcoin mining difficulty has hit a record high of 129 trillion, a 6.4% increase over the past 90 days, making it harder for miners to earn rewards. Despite a scheduled 0.33% drop on August 22, miner revenues have declined, with hashprice falling to $60 per petahash per second. Transaction fees have also dropped below 1% of block rewards for the first time. U.S. tariffs on mining rig imports, reaching up to 57.6% for China, have further strained miners, with CleanSpark and Iris Energy facing potential liabilities of $185 million and $100 million, respectively.