{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the limitations of blockchain technology?","a":"Technical Challenges: Blockchain technology is not yet fully mature, and it faces certain technical challenges in  aspects such as performance, scalability, and usability."}]}],"pr":"01079fb2386331f8fff615504aa05f98717230ba3a9aad33b80cbac7ac3937f2"}