{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the application prospects of blockchain technology in art trading?","a":"Protecting copyright: Blockchain technology can ensure that the ownership of copyright in artworks is clarified, preventing  the unauthorized use and dissemination of works."}]}],"pr":"39a9ad3f3287f68241498855a6c83775174c2903ec025e9e372c67d22a783222"}