{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the principles of blockchain technology?","a":"Data Structure: Blockchain uses a block-chain data structure, organizing data in chronological  order into blocks, each containing a certain amount of data. Blocks are connected to each other through hashing."}]}],"pr":"1c90f168509a6f37de4ef5aa21fbb2a1c865e2fd12f83ec7cb9796ac2fcdf7ab"}