The latest evidence from credible sources (CoinDesk, Yahoo Finance) confirms BitMine's holdings reached $8.1 billion. While the exact figures of 1,866,974 ETH and a price of $4,458 are not explicitly stated in the provided text, their product ($8.32 billion) is highly consistent with the reported total value. The evidence strongly corroborates the magnitude of the holding, making the statement substantially accurate.