{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of data security?","a":"Decentralization: Blockchain technology adopts a decentralized architecture, where data is not managed  by a single central institution but is distributed across multiple nodes. This decentralized feature ensures the dispersion and fairness of data, reducing the risks of data tampering and attacks."}]}],"pr":"f643b881954516533f34e3ee32dad70fefdb23c045d5e6b0a86b71c4a5c694ef"}