{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology?","a":"Decentralization: Blockchain technology does not rely on additional third-party management institutions or hardware facilities, has no central control, and achieves information self-verification, transmission, and management  through distributed calculation and storage."}]}],"pr":"14ed62ee40c017185d36c46e82302497e8221bd11971ec00bdeaa530e8a5cb6c"}