{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the roles of consensus mechanisms in blockchain?","a":"Scalability and adaptability: The consensus mechanism allows the blockchain system to  scale and adapt to different use cases, meeting the diverse needs of various industries and applications"}]}],"pr":"3712bfb32a05860867459f0012db89cc33368c1d061ac5421839259205331c26"}