{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure security?","a":"Cryptographic protection: Blockchain uses encryption algorithms (such as SHA-256) and digital signature technology  to encrypt and decrypt data, ensuring the confidentiality, integrity, and authentication of the data."}]}],"pr":"8431e77a86e656892111fcac5c59cb857f5c82bd9e2822ea1364eca3645ea3f3"}