{"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":"ser control  over private keys: In distributed exchanges, users always retain their private keys and have full control over their assets, effectively avoiding security risks associated with centralized exchanges."}]}],"pr":"13028cef4a62a76ed7571fddf1d076d1821510e442ce729c273f5538af0c59a5"}