{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of hashing functions in data verification within blockchain?","a":"The hash function plays the following roles in data verification on the blockchain:\n\nFirstly, the hash function is used to generate the hash value of a block, ensuring the uniqueness of each block. When a new block is created, its hash value is calculated based on the data contained within the block. Once the block is calculated, its hash value is used to generate the next block, forming an immutable chain structure.\n\nSecondly, the hash function ensures the immutability of data. This is because any change in any data within the blockchain will result in a dramatic change in its hash value, making it impossible to tamper with the data without being detected."}]}]}