{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the differences between blockchain and traditional databases?","a":"mmutability of data: Blockchain uses encryption algorithms, making it difficult to tamper with data once it is recorded in a block. In traditional databases, data can  be modified or deleted by authorized users."}]}],"pr":"dbbb172f990ea2767175a95063fd47c39a4c00f84384bf37ec2140d941b9eba5"}