{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to specify download information in a blockchain software upgrade plan?","a":"Determine the upgrade version: First, you need to specify the version number of the blockchain software to be downloaded, to ensure that the  downloaded file is compatible with the current system."}]}],"pr":"564d1f4a035d500e61567b8bbd84472c276bfe8ec2f12829aefcbef71c53593e"}