{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain technology in copyright protection?","a":"Transparency and traceability: The blockchain provides a transparent and traceable record of copyright ownership and usage rights. This  enables rights"}]}],"pr":"f3c951eb495e1a3fddf375c4edbf8ce06581464c9d3e50cd30f75f76dad796d8"}