{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the security of blockchain prevent risks such as information tampering and double spending?","a":"Cryptography: Blockchain uses cryptographic algorithms to encrypt and secure the data. The  data is encrypted with a hash function, which converts the"}]}],"pr":"bcc7143166d524076a05d68c6a96645027643be71f092915a6b1c80c627a2fb0"}