What question did this study set out to answer?

The aim is to fully decode the Indus Valley Script, the oldest unsolved writing system.

May 27, 2026Open Access

Indus Valley Script — Complete Mathematical Decipherment Published — E8 Intelligence Research

Key Points

The aim is to fully decode the Indus Valley Script, the oldest unsolved writing system.
Applied Weighted Procrustes Analysis (WPA) to the Mahadevan Corpus.
Implemented a 23 degree Retroflex Shift in the analysis.
Focused on identifying structured patterns and relationships in inscriptions.
Successfully decoded 2384 inscriptions from the script.
Observed an entropy collapse from H=5.67 to H=0.89, confirming a structured language.
Achieved 94% geometric concordance with Keezhadi Iron Age graffiti.

Abstract

(Zenodo 2026) Full mathematical decipherment of the Indus Valley Script, the world oldest unsolved writing system. Method: Weighted Procrustes Analysis (WPA) applied to the full Mahadevan Corpus with a 23 degree Retroflex Shift. Key results: 2384 inscriptions decoded; entropy collapse H=5.67 to H=0.89 confirming structured non-random language; 94% geometric concordance with Keezhadi Iron Age graffiti; Unicorn+Jar sequence identified as Maakanti (Great Overseer); Script identified as Proto-Dravidian logosyllabic accounting system. Published on Zenodo: https://zenodo.org/records/19515420. Submitted to The Gua Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

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