{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do consensus protocols in blockchains handle exceptional situations, such as the appearance of malicious or offline block proposers?","a":"Election mechanism: Consensus protocols can use election mechanisms to select block proposers, ensuring that only  trusted nodes can participate in block generation. For example, in the POW (Proof of Work) consensus mechanism, nodes need to compete to generate blocks by solving complex mathematical problems. Malicious or offline nodes cannot invest the required computational resources to participate in the competition, thus reducing their chances of being selected as block proposers."}]}],"pr":"09479bf2209366d5a8c7b8e24e57763299cc04cd933fe7b6c1ebfcce7bc1e4ae"}