US Patent 10212145 Methods and systems for creating and exchanging a device specific blockchain for device authentication

Mobile devices and other devices used in transactions or interactions with other computer systems can be identified by an abstract composite of information unique to the device. For example, the device can record and store when a user first started the device (a date and time of first use), how the device is configured (including any hardware/software identifications, versions, install dates, time when configurations or installations occurred, etc.), etc. All of the information can be collected for a specified period of time (e.g., 30 minutes, 1 hour, etc.), periodically, or continually. This process yields a large collection of data, which can be condensed (a record before condensing the data may be approximately 10 to 50 MB). The data may then be encapsulated in a blockchain. At least a portion of the blockchain may then be exchanged to identify the device.