{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In a blockchain, how do you execute the cancellation of derivative orders?","a":"Consensus validation: Nodes in the blockchain network conduct consensus validation on the cancellation  request to ensure the authenticity and effectiveness of the request. This process usually involves certain encryption algorithms and consensus mechanisms, such as Proof of Work (PoW) or Proof of Stake (PoS) etc."}]}],"pr":"990a5d7228e0dfdc787459ce688a4c79d7e14b1f179d9c27bfbf303d4e2145cb"}