{"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":"193cd46b7595ef06827a11f2f5b2e19d2bcfc08fc29337448f11a7bb72a871fb"}