{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure security?","a":"Distributed data storage: Blockchain divides data into different blocks, each containing a certain  number of data records. Multiple blocks form a chain, connected to each other through specific information links, creating an immutable data structure."}]}],"pr":"33ed178dab4f41e237daaa39dfd5f43585a68f2836c70d015020863a556c792a"}