{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of public keys in blockchain?","a":"Encryption and Decryption: Public keys are used for encrypting and decrypting data in blockchain networks. The  sender can use the recipient's public key to encrypt the data, and then the recipient can decrypt the data using their own private key to ensure secure transmission."}]}],"pr":"58ad4a89ea222566cb08317bd43458028bf8ef8fead6ec517e2c5d115cefa403"}