{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why is blockchain upgrading necessary?","a":"Improving Performance: As the popularity and application of blockchain technology increases, the  original blockchain network gradually faces performance bottlenecks. Upgrading the blockchain can enhance the transaction processing speed, scalability, and concurrency of the network, meeting the growing business requirements."}]}],"pr":"436ce3e0208dfe17e25459cbc53dfd6b1be1abe7f857767556aed322f576417a"}