{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do digital currencies work in blockchain?","a":"Encryption algorithm: Digital currencies use encryption algorithms (such as SHA-256) to encrypt and protect currency transactions, ensuring the security and  integrity of transaction information. At the same time, encryption algorithms also ensure the uniqueness of digital currencies, preventing security risks such as double-spending attacks."}]}],"pr":"1e0104d7dd76ef24a5672c2f0251fa0c8b8b823945324f7c23e455dd14ed3763"}