{"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":"a1dd1c3b769e44665deeb2b7495885ad90cd75a5276e27fb587540962ca646a4"}