{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the shortcomings of blockchain technology?","a":"Energy Consumption Issue: The consensus mechanism in blockchain technology (such as proof of work) requires  a large amount of computing resources, leading to increased energy consumption. Taking Bitcoin as an example, the mining process consumes a significant amount of energy."}]}],"pr":"feee68e8502e10e7b7c3022a921dbf75ac10971e00c543a50f8069c2ac89c9ba"}