{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"After a successful upgrade execution, what actions do each component need to take in a blockchain?","a":"Update encryption algorithm: To  improve the security of the blockchain, nodes may need to update the encryption algorithm to protect data and privacy security."}]}],"pr":"05c43458115ebe704a8780225ff497a25f9a3704727d046d39c5a4ef04cbbf19"}