{"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":"d1f14150193c50d08c60d1da212c85670fd3c6335433b7389900fbe7540454f9"}