{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why is it necessary to calculate the timeliness of evidence and double-sign when dealing with equivocation evidence?","a":"Preventing fraudulent activities: In a blockchain system, the immutability of transaction information makes it difficult to cover up fraudulent activities. By calculating the timeliness of the evidence and  double-signature, it helps to prevent fraudulent activities and maintain the credibility of the blockchain system."}]}],"pr":"59a1f26bb3eb05cd1c01e37f3508405f329b583d62ff8ba252cfce64a01c5bd1"}