{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What should be done if there are issues after a blockchain upgrade?","a":"Community communication: Communicate promptly with the blockchain community to  report the problem and seek opinions and suggestions from community members."}]}],"pr":"aeaf8d9beb8c97d7b7b47fd46bd13a3ba93db4ff33011b8a0b5e35db96e651a7"}