{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the traceability of transactions?","a":"Blockchain technology ensures the traceability of transactions through decentralization, distributed ledgers, and encryption algorithms. Specifically, each transaction generates a unique block in the blockchain network, and the hash value of the previous block is used as the input for the next block, forming an immutable chain structure. In addition, blockchain adopts encryption  algorithms to ensure the security of data, allowing only legitimate participants to decrypt and view transaction information. These characteristics together guarantee the traceability of transactions, enabling each transaction to be traced back to its original source and transaction history. Based on this, blockchain technology can also be applied to the traceability of food, pharmaceuticals, logistics, and other fields."}]}],"pr":"274cf92663f7e90c17997c3ae9f8f80eab758497f073baaf00dd42fab575a34f"}