{"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":"ef764d00b5a4d325e278de775b0ab21262a1cbabbe5f836e20db0f8ddec1fb73"}