{"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":"Check the file hash value: After the download is completed, you  can verify the integrity of the file by calculating the file hash value."}]}],"pr":"bbd78f44d4d860d76c03123093ae062ac8ae6c3e1ace17b83f1396071d0d75db"}