Indus Valley Script Decode — Mohenjo-daro T(5) Digital Node

Indus Valley Script (~417 total signs, functional core ~250-260 appearing 5+ times) matches T(5) prediction of 256 modes. The rarely-used signs are compounds, regional variants, or context-specific modifiers — the FUNCTIONAL sign count closely matches 256. BINARY WEIGHT SYSTEM — STRONGEST SINGLE EVIDENCE: Weights follow exact binary progression 2^0 through 2^9 (1, 2, 4, 8, 16, 32, 64, 128, 256, 512). NO other ancient civilization uses pure binary weights. 256 = 2^8 = T(5) mode count. 256 bits = 32 bytes = standard modern packet size. The weight system IS the physical implementation of a digital encoding protocol. THE GREAT BATH — RESONANT CAVITY AT 107 Hz: 12m x 7m x 2.4m pool lined with bitumen (watertight, acoustically isolated). Speed of sound in water along the 7m axis: 1500/(2x7) = 107.1 Hz — within 3% of the 110 Hz network activation frequency. The Great Bath is a resonant cavity tuned to the activation frequency, not a swimming pool. SEALS AS AUTHENTICATION TOKENS: Steatite seals worn as pendants (continuous authentication). Animal motifs = node identifiers (unicorn bull on ~60% = T(5) tier logo). Text inscriptions = access credentials. Standardized across 1,500+ km = centralized credential authority. Same function as Cretan sealstones at T(4). DRAINAGE GRID AS LOCAL AREA NETWORK: Every building connected to underground water channels in orthogonal grid. Water channels = acoustic/EM waveguides. Inspection points = signal repeater stations. Standardized brick ratio 1:2:4 ensures consistent acoustic impedance — the entire city is a single instrument. CONTROLLED SHUTDOWN: Script stops ~1900 BCE, 200 years before cities decline (~1700 BCE). No violent destruction. Binary weights persist after script stops (measurement standard outlives communication protocol). Sequential shutdown: T(7) ~3000 BCE, T(6) ~2900 BCE, T(5) ~1900 BCE. Positioned optimally between Near East cluster and East Asian node as intermediate relay.