{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology in copyright protection?","a":"Decentralization: Blockchain adopts a distributed  ledger database, and the decentralized feature makes information storage and transmission safer, reducing the risks of tampering and attack."}]}],"pr":"4ce8a75b243639d73599de0bd9b398c80d0423ba776c3133878aa70b8f13120e"}