{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to handle the private key of the derived address in the program?","a":"Regular backups: Regular backups of the  private key should be made to prevent data loss due to device failure or other unexpected circumstances. The backed-up private key should be stored in a"}]}],"pr":"396e5fc63c8e5345de722a0fcc9709e7af141736a5416f14aafcac00e9e00ac2"}