Vijay Tank — Tech, Code & Game Dev

DigiPIN Explained: What India’s 10-Character Digital Address Really Means India’s traditional six-digit PIN code was designed mainly for postal sorting. DigiPIN adds a precise geospatial layer: a deterministic, machine-readable code identifying an approximately 3.8-metre-by-3.8-metre grid cell across India and relevant maritime areas. What Is DigiPIN? DigiPIN stands for Digital Postal Index Number. It is a 10-character alphanumeric code derived mathematically from latitude and longitude. The code identifies a location, not a person, owner, property record, or postal address. The official symbol set contains 16 characters: 2, 3, 4, 5, 6, 7, 8, 9, C, J, K, L, M, P, F, and T. Confusing characters such as 0, 1, I, and O are avoided. How the Grid Works The official bounding box extends from 63.5°E to 99.5°E longitude and 2.5°N to 38.5°N latitude, using EPSG:4326/WGS84. The box is repeatedly divided into 4×4 regions. Each division contributes one character to the final code. After ten divisi...

DigiPIN, DHRUVA, and Privacy: The Future and Limits of India’s Addressing System India is building a new digital layer for address information. DigiPIN identifies a precise physical location, while DHRUVA is designed to provide a broader, consent-based ecosystem for representing and sharing addresses. In one sentence: DigiPIN answers “Where is this location?”; DHRUVA is intended to help answer “How can this address be represented and shared safely?” DigiPIN and DHRUVA Are Different Layers DigiPIN is a deterministic 10-character alphanumeric code generated from latitude and longitude. It identifies an approximately 3.8-metre-by-3.8-metre grid cell within India’s defined geographic and maritime extent. DHRUVA, or Digital Hub for Reference & Unique Virtual Address , is the broader proposed digital public infrastructure for creating, managing, sharing, and using address information. Layer Primary role DigiPIN Represents the physical geographic location. DHRUVA Digital Address Pr...