This paper is part of the "Unified Cosmic Mechanics Evolution Theory" framework, which systematically reconstructs the foundations of physics from first principles. The complete framework comprehensively reconciles classical mechanics, relativity, and quantum mechanics. It reconstructs the basic logic of the entire physical system, including the normalized origins of mass, energy, force, and momentum, the particle probability wave problem, the origin of gravity, the dark matter problem, and other core issues — all with complete mathematical verification. This is not a superficial popular science account; it is a rigorous, fully derived theoretical framework with first-principles mathematical foundations. It provides the same mechanism, complete foundational logic, and a unified derivation basis for everything from the state representation of microscopic matter to macroscopic matter, life, intelligence, and celestial bodies. The framework consists of 22 papers in total, covering: 1. Paper I:Information Dynamics Evolution System2. Paper II:Cosmic Evolutionary Resources3. Paper III:Cosmic Evolution Rules4. Paper IV:Necessity of the Cosmic Force Update Mechanism and the Origin of Time5. Paper V:Reconstruction of Dynamic Relationships of Basic Physical Dimensions6. Paper VI:The Relationship Between Relativity, Classical Mechanics, and Quantum Mechanics7. Paper VII:Evolutionary Spacetime8. Paper VIII:Single-Particle High-Speed Dynamical Effects and Their Relationship with Relativity9. Paper IX:Reconstruction of the Origin of Magnetism Based on Relativistic Dynamics10. Paper X:Dynamic Reconstruction of Mercury's Perihelion Precession and Gravitational Waves Based on Relativistic Effects11. Paper XI:Field and Particle — Momentum Topological Coding Deterministic Quantum Theory12. Paper XII:Dynamic Compatibility Verification of the Particle Encapsulation Velocity Increase Equation13. Paper XIII:The Nature of Force14. Paper XIV:Particle Velocity Saturation Dynamical Effect15. Paper XV:Corresponding Relationship of Causal Interaction State Evolution between Photons and Electrons16. Paper XVI:Derivation and Verification of the Electron Dynamic Radius Formula17. Paper XVII:Quantum Entanglement — Single-Particle Coordinated Evolution and Three-Layer Angular Momentum Conservation18. Paper XVIII:Indirect Relationship Between Charge and Mass19. Paper XIX:Principle of Momentum Flow Distribution Integral in Multi-Slit Experiments20. Paper XX:Momentum Topological Coding — Derivation of Particle State Evolution Equations21. Paper XXI:Large-Scale Galaxy Co-Evolution — Momentum Deviation Unloading and Reticulate Gravitational Model22. Paper XXII:Cosmic Free-Steady-State Binary Game Evolution — Natural Evolution vs. Unnatural Evolution This is Paper [I] of the series.

As the first paper in the framework of \emph{Unified Cosmic Mechanics Evolution Theory}, this paper starts from the "generalized state evolution system", redefines the essence of information and clarifies the systematic attributes of the universe. Core conclusions: (1) Information is "the mapping of stably distinguishable differential relationships between interactive carriers", whose essence is a relational state rather than an independent entity; (2) Information has dual dependence---it must rely on physical carriers and relational networks; (3) The long-term stability of an information state evolution system needs to satisfy nine constraint conditions (quantum discreteness, rule stability, resource conservation, etc.), and the cosmic system fully conforms to these constraints; (4) Entropy is a measure of the frequency of state transitions, and the essence of information conservation is the conservation and stability of the underlying three elements (carrier \(m_0\), driving quantity \(c\), rule \(R\)). This paper further distinguishes the primitive information of the cosmic physical system from the abstract information emerging at higher levels, and clarifies that the essence of information dynamics is a dynamic system based on representable physical relationships. The universe is a self-contained, self-driven, and rule-intrinsic information dynamics evolution system, rather than a computing system executing external programs. This research lays a theoretical foundation for the subsequent exploration of evolutionary resources, evolutionary rules, the essence of force, and the dual game between freedom and steady state.