8. BINGO uses the last digit of BLOCK HASH as the winning number. BLOCK HASH is generated randomly based on a series of very complex encryted algorithms and is a real random number. At present, most gambling games on the market demonstrate no transparency to the public in generating the random number. These games may manipulate lottery results. The game adopts BLOCK HASH as the lottery results in every 30 seconds. When a round of the lottery is over, the system will immediately announce the lottery result generated by BLOCK in the next round, so it is not susceptible to fraud and truly achieves fairness.