{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the risks of dual signatures and forced offline during the blockchain version upgrade process?","a":"System security risk: During the version upgrade process, the double-signature mechanism may be attacked,  allowing hackers to modify blockchain data or maliciously control transactions. This is mainly because the security of the blockchain system may be affected during the upgrade process, providing an opportunity for hackers to take advantage of."}]}],"pr":"0fe0bf768aff14cc024d669f6216613921b8aa94b1439ad0f1a489b2a9c8b9e2"}