Chapter 52 presents a collection of numerical closure relationships centered around recurring nodes including 3600, 299792, 3.141, 121, 1331, 191, 412.36, 727, 499.65333, and related values. The document records observed closure pathways, reversible numerical transformations, mirror-digit structures, Earth-related closures, light-time relations, and planetary X-network extensions. The work investigates how recurring numerical nodes reconnect through multiple independent calculation paths and form a persistent closure network. The chapter includes analyses of: 3600-second closure structures Light-time (c-region) closures Pi-based closure pathways 121 mirror-digit structures 1331 and 191 mixed closures Earth diameter and circumference closures Additional connector-node closures Planetary X-network diameter reconstruction Multi-path closure network relationships The document is presented as an original research record and should be read together with the accompanying IRCH Public Research License 1.0.
Danijus Kazlauskas (Sat,) studied this question.