{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the recommendations for blockchain validators to execute an upgrade process in case of double-signing risk?","a":"Introduce multi-signature technology: Utilize multi-signature technology to enhance the  security of blockchain transactions and make it more difficult for attackers to carry out malicious activities."}]}],"pr":"7db334a6b135ea1ab1fddf4dd6ad03ee202a317dc399f17fb14f24f9a2bb46d1"}