{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do nodes in a blockchain reach consensus decisions?","a":"In a blockchain, nodes make consensus decisions through consensus mechanisms. Consensus mechanisms are equivalent to a voting system, and different consensus mechanisms have different voting rules. All nodes have the right to vote. When a new block needs to be generated, all nodes participate in the voting. According to the rules of the consensus mechanism, nodes vote in a specific way, such as achieving a majority or two-thirds vote. Eventually, one node is selected to generate the new block based on the voting results. All nodes reach consensus through the consensus mechanism, and the generated block is considered valid, while other nodes' generated blocks are invalid. The node awarded the right to  generate a block receives the blockchain's..."}]}],"pr":"f736479688b99f1875e5451123b1bc121d572d34cbe9c7a49e69ec3078b04d28"}