{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain in terms of digital identity protection?","a":"Private key control: Users hold their  own private keys, which allows them to control and manage their identity data. When using identity data, authorization is granted through the private key, ensuring that the rights and control over the data remain consistent."}]}],"pr":"2a363cb3ca0865ef822467081d4ed072556017735375b1ab5eac0c0699c147a0"}