{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to prevent punishment accumulation caused by duplicate signatures of consensus nodes in blockchain?","a":"Limiting signature time window: Set a shorter time window, within which nodes can only sign once. This forces nodes to complete double-signing within a  limited time frame, making it more difficult to achieve."}]}],"pr":"db82b0ebf09d14fb7990c9190cfa922ad8875c173f87a41a43d15089cdcecac1"}