{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the privacy protection measures in blockchain technology?","a":"Encryption and authentication: Using encryption algorithms (such as  elliptic curve cryptography and asymmetric encryption) in blockchain ensures the security of data, while authenticating participants to prevent unauthorized access."}]}],"pr":"8542756c13a29ab0fe175170b59be89b60427d3684c094361e3a44e035208547"}