{"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":"5cf65c5bf92233c528277bf822b9324fdf9d221c013535aaaf2d8acc2381ce98"}