{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of binary options market in the blockchain?","a":"High security: Blockchain adopts encryption algorithms to ensure the security and tamper-proof nature of transaction  data, effectively preventing fraud and other malicious activities."}]}],"pr":"cda9aa57208b8aa61b4cec32c4c7e4df154683d7391999774a2a4690c367ba48"}