{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the scalability issues of blockchain?","a":"Energy  consumption issue: The consensus mechanism of the blockchain network (such as proof of work) requires a large amount of computational resources, which leads to high energy consumption and environmental impact."}]}],"pr":"3a6a0de96d0bf312f4b9943eef96d0b58f0a9d348012988f1fa13f3df91f1ea9"}