{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure the integrity of data and prevent tampering?","a":"Distributed storage: The copy of the blockchain ledger is stored on multiple nodes, which ensures that the data will not be lost due to the failure of a single node. This distributed storage mechanism enhances the robustness and fault tolerance of the  blockchain system."}]}],"pr":"45c95d9346cdf0c6ca06f2699eafe11a33e30dd73529b3e61707a4bedbe9d7a1"}