The UR-Axiom of Tensor Field Dynamics Foundation of a Physics from a Single Axiom

This work states the foundational claim of Tensor Field Dynamics in its sharpest form: not several coequal starting assumptions, but exactly one final principle is meant to carry the whole physical order. The UR-Axiom identifies field tension or space tension as the one ultimate, non-derivable foundational reality of the universe. On this basis, the document unfolds a canonically closed, field-theoretic framework with 26 principles for the description of gravitation, optics, and cosmology. Its claim does not lie merely in a single model idea, but in a complete status architecture: axiom, derivation, mapping, calibration, and observational comparison are explicitly kept distinct. The document therefore presents itself as the canonical foundational text of the TFD framework and as an audit-proof elaboration of a single-axiom approach in which further structures are read not as additional origins, but as downstream unfoldings of the same foundational principle.