Mining pool B, the liquidity mining pool: bt is the _**_amount of CoFi tokens generated per block, bt ≥3.6864, start with b0=9, the amount will be reduced by 20% for every 2,400,000 blocks and kept the integer only. For example b1=7.2, b2=5.76, b3=4.608, b4=3.6864, b5=3.6864, b6=3.6864 ...