Boltzmann's Constant as Thermal-Access Stiffness: A Parameter-Free QTT Derivation of the Role and Uniqueness of kBk_B kB from Dimensionless Address-Counting Entropy and the UEL Energy Cell

Boltzmann's constant is the thermal-access stiffness: the unique scalar converting the universe's dimensionless address-count entropy into the laboratory's energy-per-kelvin language, with all seven thermal observables of the corpus forced to share it.