{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In blockchain, how to execute batch cancellation of spot orders?","a":"After the verification is  passed, the platform will send a cancellation instruction to the blockchain."}]}],"pr":"778e085865837114c6439bf32d1f3b3f5cc94feef44890360b1bbd64fb6a8f60"}