{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the limitations and challenges of blockchain technology?","a":"Scalability: As the scale of the blockchain  network expands, transaction speed may decrease, limiting its ability to handle increased demand."}]}],"pr":"23faac8c96c7d42f22e1e640a7cfba65cb95b9e2d68d0a2c20935fb1eef58510"}