{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the traceability of transactions?","a":"Distributed ledger: Blockchain technology  uses a distributed ledger, and each node saves complete ledger data. When a transaction occurs, the transaction information is broadcast to the entire network and verified and recorded on all nodes. This makes transaction information public and transparent."}]}],"pr":"9cf3f7eaef919303371165a45ac992ff3a119f2d21d56ebba5c32f1852b263d7"}