{"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":"71aea008f3499c3b4b1f00a71b6fbfbbd45c526057fe78d72fff0a0401f7ad87"}