{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of digital copyright management?","a":"Ensuring clear ownership of copyright: Blockchain technology can record and verify the creation time and author information of digital works, ensuring clear ownership of  copyright and avoiding infringement activities."}]}],"pr":"e4b25f50ad0388085042efc5e8a9f908deaf53adf3af81b0bb4793431b9c2b24"}