{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages and disadvantages of consensus mechanisms in blockchain?","a":"Energy consumption: The consensus  mechanism involves extensive computing resources, leading to high energy consumption."}]}],"pr":"0c5c8116369de90669c35af7ab98836e0ee1bf9e0416e6db835842a9e8507668"}