{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problems of data security and privacy protection?","a":"Cryptographic protection: Blockchain technology uses encryption algorithms (such as SHA-256) to encrypt data, ensuring its security during transmission and storage. Only  participants with the correct keys can access and verify the data."}]}],"pr":"7b5cf03ea20f4e19d66b4738692f94899ca8a1878e8286ad016e86d5b5af783f"}