{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain technology in terms of protecting privacy?","a":"Decentralized control: Blockchain technology adopts a decentralized network structure, and data  storage and transmission do not depend on a single central node, thereby reducing the risk of data breaches."}]}],"pr":"df0e84d68f5c168e405b5aacef885e811d089716c3f40a729368af760aed4ab8"}