{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why does blockchain technology have high security?","a":"Data Integrity: Blockchain utilizes a highly redundant database to ensure the integrity of information. Each block contains the hash value of the previous block, forming a chain structure. Once the data in a block is altered, it will  affect the hash value of the subsequent blocks, thereby ensuring data integrity."}]}],"pr":"798ca6f1e5891b3bc709d1ec1a44977285b817b4ecb5bd486b5296bf11a0ba15"}