{"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":"22bfbd432e5929d164fb76cf3e228aaf3b1c81c0015f68f5c1ce27167d69abe4"}