{"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 still faces certain technical challenges in aspects such as performance, scalability, and usability, such as  transaction throughput, latency, capacity, and bandwidth issues."}]}],"pr":"138a405eade67fa8be6b2a5ad71d08e4ced4b75148004eb33f80ace89f1dacbb"}