{"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":"48642bb84def29f43879290ab74f0aa95f5a67a5a5f8215cfc44781579dd116d"}