{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology apply to digital copyright protection?","a":"Immutability: Once the data is recorded in blockchain technology, it is difficult to tamper with, providing a reliable technical guarantee for  digital copyright protection."}]}],"pr":"6cc1cbecc4debe17a5ee3914188954641f4f6c101b586567eff69cf870039e59"}