Device Distributed Blockchain - 2DB

A method of authenticating a travel path using a device distributed blockchain system, the method comprising:

• collecting one or more discriminating characteristics of a physical location from sensors at a physical location;
• transmitting said discriminating characteristics from said sensors to a gateway;
• generating physical location raw data from said one or more discriminating characteristics of said physical location at the gateway;
• generating a unique cryptographic key representing said physical location raw data of said physical location;
• transmitting said cryptographic key, hardware identifiers of said gateway, location information, and timestamp information from said gateway to a tag physically affixed to an object in transit;
• transmitting said cryptographic key, hardware identifiers of said gateway and said physical location raw data to a server;
• wherein said tag contains a sequential decentralized ledger;
• wherein said sequential decentralized ledger contains at least said cryptographic key, said location information, said timestamp information, and said hardware identifiers of said gateway from which said tag received said cryptographic key;
• wherein a digital twin of each said decentralized ledger is maintained on said server;
• wherein said server contains said physical location raw data, said cryptographic key, said timestamp information, and said hardware identifiers of said gateway;
• further comprising asynchronously updating said decentralized ledger;
• wherein said cryptographic key based on said discriminating characteristics and said hardware identifiers create unique location-based fingerprints for each ledger entry, linking these ledger entries to form an immutable chain;
• repeating the steps herein to create a new decentralized ledger entry for each gateway that communicates with said tag;
• outputting said ledger indicating the travel path of said tag and comparing said ledger to the information contained in said server for each ledger entry.