Technical and bureaucratic function Unique identifiers such as RJ01228542 perform multiple technical functions. They serve as keys in relational databases, anchoring a vehicle’s entire lifecycle data: build specifications, recall notices, accident history, service records, and ownership transfers. When appended to a descriptor ("motor home") and a provenance tag ("ENG"), the identifier allows automated systems to filter and return finely targeted records. Verification is the crucial second step: it affirms that the identifier truly corresponds to the described asset and that the attached records meet whatever standard of review is required (e.g., verified by a licensed inspector, authenticated by a registration authority, or validated by a third-party vehicle-history service).