{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of digital copyright protection?","a":"Transparency and traceability: The blockchain  is a transparent and traceable system, as each node in the network maintains a copy of the complete transaction history. This feature enables copyright holders to easily track the usage of their works and ensure that they receive proper attribution and"}]}],"pr":"56ddb05957c2b74e14ff2eca324fc87cd4443374eed0cfe76585dd5636295c72"}