{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain address the issues of data immutability and on-chain smart contract security?","a":"Decentralized verification: Nodes in the blockchain network verify operations in smart contracts and  reach consensus to ensure the execution of the contract is correct and trustworthy. This decentralized verification mechanism increases the security and reliability of data, while also reducing the risk of data manipulation."}]}],"pr":"34d5090ebe40a3885c3b926e7208610daa9283a43494f609db8cc8b148162198"}