{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the repair and restoration work carried out during the blockchain upgrade process?","a":"Solution Design: After determining the problems, the development team will design corresponding solutions. These solutions may involve code  upgrades, protocol optimization, consensus algorithm adjustments, etc., in order to solve existing problems and improve the system's performance and security."}]}],"pr":"b84dc2e1d1beaabc4b3e45f0724e5a1a054dfa184241c286104c2be889790c32"}