{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the launch proposal of the expiring futures market in blockchain be combined with smart contracts?","a":"Trading conditions: specify the  types, quantities, prices, and expiration dates of futures transactions."}]}],"pr":"eb39432e9693a9b6054e756b3fd95eefb8edaf10c9be8012cacc48208f30851c"}