{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of the BLS multi-signature scheme used in blockchain in the Secure Proof of Stake (SPoS) consensus mechanism?","a":"Enhance transaction processing efficiency: The BLS multi-signature scheme can achieve signature aggregation and key aggregation, thereby improving the efficiency of the SPoS staking process. This reduces the complexity of node operation, making the system more efficient."}]}]}