{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The steps for recovering nodes during a blockchain upgrade are as follows:","a":"Download the latest version of node software: After  the blockchain upgrade, the node needs to download the latest version of the node software to adapt to the new protocol and features."}]}],"pr":"b9dd917a16c4a8cc4c8dbcc4e757413a2bcd2ca2a6bcaf552e0d4d6c45827138"}