Blockchain network system

A blockchain network system comprising:

• a plurality of sensor devices;
• and
• a blockchain network,
• wherein the plurality of sensor devices is connected with each other via the blockchain network in a communicable manner, and sensor data acquired by the sensor devices is managed on the blockchain network in a distributed manner,
• wherein the sensor device includes:
• a sensor unit configured to sequentially acquire sensor data in real space on a frame-by-frame basis;
• a data processing unit configured to process the sensor data acquired by the sensor unit;
• a data storage unit configured to store the sensor data acquired by the sensor unit;
• an encryption unit configured to encrypt the sensor data obtained by the sensor unit;
• and
• a registration unit configured to register the sensor data encrypted by the encryption unit on the blockchain network,
• wherein the data processing unit aggregates the sensor data acquired by the sensor unit with a predetermined number of frame aggregations, and
• wherein the encryption unit collectively encrypts the sensor data aggregated by the data processing unit with the predetermined number of frame aggregations.