Unique Identifier (UID) Services provide a decentralized, scalable system for assigning unique identifiers for resources within a federated architecture. UID Services ensure decentralization, control, and privacy by enabling Data Domains and Product Teams to independently generate and manage identifiers, avoiding reliance on central authorities. By incorporating the Linked Data principles of using Uniform Resource Identifiers, HTTP, and semantic standards, the UID Service enhances resource identification, linking, and interoperability within federated data-centric ecosystems. Key Features: * Decentralization: Allows each domain or team to independently manage identifiers, eliminating single points of failure and fostering autonomy by assigning universally unique, persistent Uniform Resource Identifiers (URI, RFC 3986) using URN with the UUID namespace (e.g., urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6), ensuring collision-free uniqueness across federated environments. * Discoverability: Promotes the interlinking of URIs to build a connected knowledge graph, aiding resource discovery. * Privacy: Offers selective disclosure for metadata associated with identifiers, safeguarding sensitive information. * Interoperability: Adheres to Linked Data principles, enabling seamless integration with RDF, SPARQL, and other Semantic Web standards. * Portability: Ensures system-independent usage of identifiers across platforms. * Simplicity: Focuses on intuitive management for broad adoption and ease of implementation.