{"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":"Immutability: Once the data is entered into the blockchain, it cannot be altered or deleted. This feature ensures that the ownership and usage history of digital works can be traced securely, safeguarding the rights and interests of copyright holders."}]}],"pr":"898b6f4be395a856362c057c5049a731a4b240b4876758d939475b650fcc5c0c"}