{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to handle the risks of blockchain upgrading?","a":"Full testing: Before upgrading the blockchain, conduct sufficient testing on the upgrade plan to ensure the stability and security of the new version. This can effectively reduce the risk of problems during the upgrade process."}]}],"pr":"e66013eb27ea8a9602060f82e7b8dc8982f555dee53e2adbef42785fdc1d141f"}