{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do smart contracts ensure the security of execution in blockchain?","a":"Consensus  mechanism: The consensus mechanism in blockchain networks (such as proof of work, proof of stake, etc.) ensures data consistency during the contract execution process."}]}],"pr":"31a7c33ad70d4c16e1959a83ca92b9c4e6798c972344225e1471089bf35473e1"}