{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the privacy protection mechanisms in blockchain?","a":"Homomorphic Encryption (HE): Homomorphic encryption is a type of encryption that allows mathematical operations to be performed on encrypted data, enabling the encryption of data at rest and in transit, thus  protecting the privacy of users."}]}],"pr":"7bb1b7628b749dcd228f3f1fad972b86d3c4b5c3cc6092f59ae45c4fd26e5c4c"}