{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the principles of blockchain technology?","a":"The principle of blockchain technology is a decentralized distributed database technology, which organizes data in chronological order to form blocks, and uses cryptographic principles to ensure the security and immutability of the data. The  main components of blockchain technology include the following core parts："}]}],"pr":"429f855ffd45ef2ee75692fd8b36426b6d5e312dd6371c9b6a4761e649e7644e"}