{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The recovery process after a blockchain upgrade includes the following steps:","a":"Download upgraded software: After the blockchain upgrade, the latest node software needs to be downloaded and installed. Ensure that all nodes use the same version of software to  guarantee the consistency of the blockchain network."}]}],"pr":"2b4cc9b07cb3ba9e50408cda4989aa2b50509ba959fc16acc5a6346a0a142343"}