{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the authenticity and integrity of transaction information?","a":"Data cannot be tampered with: Each block contains a certain number of transaction records and is linked to the previous block,  forming an ever-growing chain. Once a new block is added to the end of the blockchain, its data records cannot be changed or deleted, ensuring the integrity of the data."}]}],"pr":"522abcc803a11029f75f82b8a4c258da033a57229581dcb86130aea2bd41378d"}