{"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":"Synchronize data: After installing  the latest version of the software, the node needs to synchronize with other nodes to ensure data consistency. The synchronization process may involve a large amount of data transmission, so sufficient network bandwidth and time are required."}]}],"pr":"78bfd49bd0ee912050961e0a147f1a283d1642002bfbda8904da42fe82dd68cc"}