👉 The Identifier Fluid (IF) is a flexible and dynamic data representation system designed to efficiently manage and query complex, evolving datasets. Unlike static identifiers, IF allows identifiers to change over time, accommodating updates and variations without requiring complete re-identification. This fluidity is achieved through a hierarchical structure where identifiers can be nested and linked, enabling precise and context-aware data retrieval. By supporting multiple levels of abstraction and relationships, IF enhances scalability and interoperability, making it particularly useful in domains like knowledge graphs, semantic web applications, and large-scale data integration projects. Its adaptability ensures that identifiers remain relevant and useful even as underlying data evolves.