The Unified Theory of Knowability (UTK) is a foundational structural framework that identifies the minimal conditions under which reality can support the emergence of knowledge. It introduces a layered dependency architecture beginning from a meta-principle of non-trivial differentiable reality (Principle U) and extending through structured existence, distinction, information, representation, abstraction, inference, truth-convergent processes, observers, and finally science. The framework does not propose domain-specific physical or cognitive models but instead establishes necessary structural preconditions required for knowability in principle. Related resourcesAdditional preprints, theoretical frameworks, and ongoing work by the author are available at:https://murad-ahmadov.github.io/