{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the execution of derivative market order cancellation in the blockchain?","a":"User initiates cancellation request: Firstly, traders need to initiate an order cancellation request to the blockchain network.  This request usually includes detailed information such as the order ID, trader's identity information, and the reason for cancellation."}]}],"pr":"eaf8047465281e22216ca5066cdde9fb1a85ab45aadadd7c16690cdd9f81f7f4"}