3: Check and set a reasonable gas fee Check the block progress website: https://t.co/MjOEfDeRyw The purple one is the completed block, and the green block closest to the dotted line is the block that is about to be completed! When the block we need to punch in is the green block closest to the dotted line, it means that we can start punching in. We just need to set the gas higher than the average gas of the current block. The picture shows 5 satoshis, and I usually set it to 8 satoshis to ensure that I can punch in successfully! Reasonable and clever setting of gas is the key! Otherwise, if the gas is set too low, the punch in will be invalid and wasted, and if it is set too high, the cost will be too high!