{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology improve public transportation management?","a":"Enhancing data security: Blockchain technology has decentralized and tamper-proof characteristics, ensuring the secure storage and transmission  of public transportation data. By using blockchain, public transportation companies can establish a reliable data recording system, ensuring the authenticity and integrity of the data, thereby improving operational management efficiency."}]}],"pr":"f576af6e9fa245f985f89d0dd99e55f2a8a3dac21fc85a1403caf2361d39cf0f"}