Bit Digital and $Iris Energy have shown a decreasing trend in Bitcoin production over the past three months, despite an increase in hash rate. Bit Digital produced 119.3 coins, 63.3 coins, and 61.7 coins from April to June, while $Iris Energy produced 358 coins, 230 coins, and 233 coins during the same period. Additionally, Argo Blockchain's data also indicates a similar decline trend.