{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The recovery operations following a blockchain upgrade include which steps?","a":"Upgrade node software: Upgrade the blockchain software on each node to the latest version to ensure that all nodes in the network can operate normally. During this process, attention should  be paid to checking the version number, compatibility, and other factors of the node software."}]}],"pr":"d99c4b6b0bf5510399eb83c3215fd9cf782b88669a4ee0fae296e5f809ceadd1"}