Blockchain based transaction management

A system, comprising:

• at least one processor;
• and
• a memory communicatively coupled to the at least one processor, the memory storing instructions which, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• accessing, by a first application executing on a first computing device, buyer information from at least one blockchain, wherein the buyer information comprises loan and/or insurance information;
• responsive to accessing the buyer information from the at least one blockchain, generating, by the first application, a token from the buyer information and encoding, by the first application, the token in a scannable code;
• displaying, by the first application, the scannable code to a second application executing on a second computing device via a user interface of the first application;
• and
• receiving, by the first application, an indication that the buyer information satisfies a criteria for purchase of a vehicle;
• accessing, by the first application, a digital contract for the vehicle from the at least one blockchain and signing, by the first application, the digital contract;
• receiving, by the first application, a private key of the vehicle from the second application;
• and
• communicating, by the first application, with an ignition system of the vehicle over a communication network and starting, by the first application, the ignition system using the private key.

One or more non-transitory computer-readable media storing instructions which, when executed by at least one processor, cause the at least one processor to perform operations comprising:

• accessing, by a first application executing on a first computing device, buyer information from at least one blockchain, wherein the buyer information comprises loan and/or insurance information;
• responsive to accessing the buyer information from the at least one blockchain, generating, by the first application, a token from the buyer information and encoding, by the first application, the token in a scannable code;
• displaying, by the first application, the scannable code to a second application executing on a second computing device via a user interface of the first application;
• and
• receiving, by the first application, an indication that the buyer information satisfies a criteria for purchase of a vehicle;
• accessing, by the first application, a digital contract for the vehicle from the at least one blockchain and signing, by the first application, the digital contract;
• receiving, by the first application, a private key of the vehicle from the second application;
• and
• communicating, by the first application, with an ignition system of the vehicle over a communication network and starting, by the first application, the ignition system using the private key.