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US Bitcoin Mining Firm Core Scientific to Triple Capacity With Massive 59,Machine Order. U.S. blockchain and AI infrastructure provider Core Scientific has expanded its fleet of state-of-the-art crypto miners to over 77,, comprising the largest-ever grouping of Bitmain Antminer S19 rigs outside of China. (HUTMF), Marathon Patent Group, Inc. (MARA), and Canaan Inc. (CAN) are Bitcoin mining companies headquartered in Canada, the United. Filled Against One of the Largest Bitcoin Mining Operations in the U.S. and a response to the lawsuit but the company has not responded.