{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the security of blockchain technology be ensured?","a":"Decentralization: Blockchain technology adopts a decentralized network architecture,  with data stored on multiple nodes, thus avoiding single-point failures and the risks of concentrated attacks."}]}],"pr":"fb8a458f53bfa003f0ca301048353ab9a5dbf606ed1e9c9022b5c33f9b953f16"}