{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do consensus mechanisms in blockchain utilize signatures from the previous consensus group to ensure randomness and prevent malicious attacks?","a":"The consensus mechanism in blockchain ensures randomness and prevents malicious attacks by utilizing the signatures of the previous consensus group. Here's how it works:\n\nIn a blockchain system, each consensus group is responsible for validating and signing new blocks. During the signing process, the consensus group checks whether the transactions in the new block are valid and whether they comply with the rules of the blockchain. Once the validation is passed, the consensus group signs the new block, linking it to the previous  block signed by another consensus group, forming a continuous blockchain structure.\n\nThis linkage based on signatures ensures the randomness of the blockchain and prevents malicious attacks. Firstly, each consensus group doesn't know the content of the next block, thereby preventing them from manipulating the blockchain. Secondly, the use of signatures ensures the integrity and security of the blockchain, as any attempt to modify a signed block would be detected. Finally, the continuous chain of blocks prevents any single consensus group from gaining control over the blockchain"}]}],"pr":"e518f8f6cb46d524fa559addad6721acb4cd9c41a565878fac43c7d776d150db"}