{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The proposal for launching a binary options market in the blockchain contains which parameters?","a":"Expiration Time: Sets the expiration time of  the binary options contract, which can be minutes, hours, days, weeks, or months, etc."}]}],"pr":"9765100b4968d694d34441fbec68dd1af8497179bede0604f875286cdacb7d8f"}