{"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":"446c18e73dabbbbfaa87e2426311a15a528a393c8fdb61ee31ddea424a8853d2"}