{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of blockchain technology in privacy and security protection?","a":"Decentralization: Blockchain technology adopts a  decentralized network architecture, with data stored on multiple nodes, avoiding the privacy leakage risks that may occur in centralized data storage."}]}],"pr":"70965f28f1853677769cc78b457a62f5a038836e0518a1db65eeb6a812fe2aa4"}