{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of distributed exchanges compared to centralized exchanges?","a":"User control over private keys: In distributed exchanges, users completely control their assets  and private keys, avoiding security risks in centralized exchanges, such as platform runs and hacker attacks."}]}],"pr":"71b9ca746d3bb1a72c23e24876f1b48fa2fe141be48a5d8f0384d2c445f7c1cb"}