{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do blockchain transactions ensure security?","a":"Encryption  algorithm: Blockchain transactions use encryption algorithms (such as SHA-256) to encrypt transaction data, ensuring the security of the data. Meanwhile, encryption technology can also prevent double-spending attacks, ensuring the uniqueness of transactions."}]}],"pr":"2791023be23e7e4c36d9eec5fc3ab8faa8cd6e67ae88cbdce84730f2c7f020c1"}