{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do programs in blockchain ensure security and transparency?","a":"Encryption algorithms: Blockchain uses encryption technology (such as public-key cryptography) to secure the data. Each node in the network has a public key and a private key. The public key  is used to encrypt transactions, and the private key is used to decrypt them. This ensures that only the recipient can read the encrypted data, preventing unauthorized access."}]}],"pr":"49256ba439d134e6abc3d3a52e28622a920b01cfd1c3fee783a20d27ea0275a6"}