{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of data hashing in blockchain?","a":"Ensuring data integrity: The hash value is the data abstract of each block in the blockchain, which is calculated by the hash algorithm based on all the transaction information in the block. Once the data changes, the hash value will also change accordingly. This makes the data  on the blockchain tamper-proof, ensuring the authenticity and integrity of the blockchain data."}]}],"pr":"6b14cb4bd1d334566c970fb6c2fa140691af0905a2f44c9caae86f8ef25e3e63"}