{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to prevent consensus nodes from participating in consensus activities again in a blockchain?","a":"Randomize consensus rounds: In consensus activities, nodes can vote based on a random  number generator to determine the consensus round they participate in. Different rounds have different weights, and nodes can only participate in a certain number of consensus activities within a certain period."}]}],"pr":"5d133f862e89c769f5dad7295b13ffda2b710dd408d3571a0435a651e1ebed91"}