{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can I securely back up the key file of a validator wallet in a blockchain?","a":"Encrypted backup: Backup the wallet with encryption to protect the assets in  it. If the backup file is encrypted, even if it is stolen, the assets in the wallet will not be compromised."}]}],"pr":"db0e7ace0f7aca873c641dc47e96bfadbffcc0d1adc1cd9ac8b87b2a527b934f"}