An OID Registry, or Object Identifier Registry, is a database that assigns unique identifiers to various objects, concepts, or entities. These identifiers, known as Object Identifiers (OIDs), are used in various fields, including information technology, telecommunications, and biomedical research, to ensure that each item can be distinctly recognized and referenced. The OID Registry helps maintain consistency and avoids confusion by providing a standardized way to identify objects. Each OID is structured hierarchically, allowing for organized categorization. This system is crucial for interoperability among different systems and applications, facilitating better communication and data exchange.