{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the innovative aspects of blockchain technology in data storage and management?","a":"Chain-based data structure: Each node in the blockchain stores  the complete data in a chain-based structure, ensuring that the data cannot be tampered with and is easy to verify."}]}],"pr":"5b789bc604100a45471f512cbdfac56d073cd81de0bbbb6397aef3bff1713517"}