{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the construction of smart cities?","a":"Enhancing data security: The construction of smart cities requires a large amount of data support, such as energy consumption, traffic management, and ecological environment data. Blockchain technology can achieve decentralized data storage,  ensuring the integrity and security of data, and preventing data from being attacked and stolen."}]}],"pr":"d5d7597f167a86c9667c69bfc1a4fd8820671ed7c7befbf4dd1432fbb74bdaa3"}