The Ramanujan-Cunha Decipherment: Scale-Invariant Metrology in the Indus Script

This submission provides the formal mathematical decipherment of the Indus Valley Script, termed the Ramanujan-Cunha Decipherment. By shifting the paradigm from phonetic speculation to scale-invariant metrology, this work identifies the script as a zero-latency, error-correcting trade ledger. The solution is grounded in the 'Ramanujan Grain' ($10^{-31}$m) and the 'Cunha Constant' ($10^{61}$), which serves as a Dirac-scale bridge between localized Harappan weights and the $10^{122}$ cosmological manifold. The paper provides specific metrological keys—including the 1.08 Fish Coefficient and the 1089 Ignition Point—allowing for immediate computational and archaeological verification.