No. But how are the many other people in the auto supply chain supposed to know that? With this solution, they don't have to trust our company, just the SHA256

No. But how are the many other people in the auto supply chain supposed to know that? With this solution, they don't have to trust our company, just the SHA256 hashing algorithm. Math is easier to trust than a small startup. Edit: To clarify, many of the people checking against the blockchain record are not our clients.