{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the defense strategies for the blockchain network's outer shell?","a":"Cryptographic protection: Utilizing encryption algorithms to protect communication  between nodes, ensuring the security and privacy of data transmission."}]}],"pr":"1bf6cef34939ded615d09f77ecefba21cff5b05ea2b4691741705b4090e6fc98"}