{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the solutions to the scalability issues of blockchain?","a":"Layered design solution: dividing the blockchain into multiple layers, each of  which only processes a certain number of transactions, thus improving the system's processing capacity."}]}],"pr":"7bb84bc839934870ea310e0ce5a8d8fbaa62a73f4420314c1b6383f9086f817b"}