{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to traceability and origin tracking?","a":"Immutable: Each block contains the hash value of the previous block, forming a chain structure. Once the data in a block is changed, it will cause the hash value of the subsequent blocks to change, rendering the entire chain invalid. Therefore, to tamper with  the data on a blockchain, one must tamper with all related blocks simultaneously and not be detected during the tampering process. This makes it difficult to tamper with the blockchain's data and ensures its integrity."}]}],"pr":"7a06972e5d7194e79f5277d3591af9d6059d4ea9fe88911494ca695dae3f0399"}