{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the consensus consistency issue in blockchain be resolved?","a":"The consensus consistency problem in blockchain is mainly solved through consensus algorithms. Consensus algorithms are the process by which nodes in a distributed system reach a unanimous agreement on a proposal. Depending on whether the problem to be solved is ordinary error or Byzantine general problem, consensus algorithms are divided into CFT (Crash Fault Tolerance) and BFT (Byzantine Fault Tolerance).\n\nIn traditional distributed systems, nodes may disconnect or send incorrect messages due to network reasons. In this case, there are some classic solution algorithms for CFT-based consensus algorithms such as Paxos and  Raft and their variants. In blockchain systems, BFT-based consensus algorithms such as Practical Byzantine Fault Tolerance (PBFT) and its variants are commonly used."}]}],"pr":"7ab6dc343fdfe424835b90fdf693691fa37efa932c6e2b44a50c300a6168199a"}