Part III of the YM trilogy. This monograph develops the HCK protocol world — a typed comparability and network-certification layer that extends individual closure stages (from Part I) and geometric avatar structures (from Part II) into a society-scale framework. It introduces constitution geometry over exceptional Lie-type ladders, evidence-time clocks, certificate-based diagnostics, and a multi-tier network architecture (FAO to 10TWF) with auditable defect functionals and stability guarantees. The nine-part structure covers protocol foundations, human-node formalisation, conduct-direction geometry, and societal-level certification.