{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the principles of blockchain technology?","a":"Decentralization: Blockchain technology adopts a distributed network architecture, without a centralized management organization or server. All nodes have  equal status and jointly maintain the entire network."}]}],"pr":"c9fc5005bc52666676d86213236d462c57fa49c58f252d9444d1c024f47a7ddd"}