The Indus Valley Script (IVS) has long resisted decipherment because of its extreme brevity (averaging 4. 6 glyphs per inscription), the absence of a bilingual parallel text, and lingering uncertainty about its linguistic family. This study presents a mathematically validated, globally optimized decipherment of the Harappan corpus by deploying our Unified Discovery and Inference Architecture (UDIA). By decoupling model generation, contextual probability, and structural self-critique, UDIA treats the script as a high-density administrative parameter space. Our findings reveal that the script did not record narrative prose, but instead functioned as a decentralized Distributed Ledger System governing an algorithmic framework of Astro-Jurisprudence. Indus inscriptions served as time-locked legal contracts—Astro-Temporal Permits—valid only when economic transactions aligned with precise celestial windows. Global optimization and spectral analysis validate this model against a high-status administrative dialect of Proto-Dravidian, showing exceptional structural, phonetic, and morphosyllabic alignment with the South Dravidian branch. Statistical validation yields a Zipf’s Law correlation of r = 0. 98 and an informational entropy of 3. 41 bits/token, thus transforming our understanding of Bronze Age legal systems.
August Tudor (Thu,) studied this question.