{"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":"Smart contracts: Regulating interactions  between nodes through the creation of smart contracts, preventing."}]}],"pr":"e8534e150002c3c223e2b46edf5050dae8b7b18a7351fc629a53becdacdafe6e"}