Experimental geospatial system

Project Meridian

v0.0.2 · Compact Candidate A
Experimental build. Meridian Keys generated before specification 1.0 are not permanent addresses. The grid, alphabet and key syntax are not yet frozen.

Meridian Key

Global location encoding, designed offline-first.

Project Meridian is building a compact hierarchical location code for the whole Earth — land, sea, poles and the International Date Line — with progressive precision targets of approximately 10 m, ≤4 m and ≤1 m.

Coverage Global
Network Not required
Status Algorithm research

Encode

Coordinates → Meridian Key

Candidate A
Standard ≈10 m Not generated
Fine ≤4 m Not generated
Precise ≤1 m Not generated

Decode

Meridian Key → Geographic cell

Candidate A
No key decoded

Paste a Meridian Key to inspect its cell.

Map validator

Interactive Meridian cell testing

Live · Candidate A
Click anywhere on the map to generate Meridian Keys.
Selected precise key No location selected
Map elevation Not resolved

Street view uses OpenStreetMap. Satellite view uses Esri World Imagery. Map elevation is resolved from Open-Meteo using Copernicus DEM GLO-90 (EGM2008). Meridian horizontal encoding/decoding itself still happens locally in your browser. Elevation data: Open-Meteo / Copernicus Programme.

Current phase

Phase 1 · Mathematical design

Grid geometry, information budget, alphabet, boundary rules and precision semantics.

Next milestone

Meridian Core 0.1

Deterministic encode/decode, cell bounds, parsing, global tests and reference vectors.

Integration target

God's Eye View

Local Meridian Key lookup and generation, independent of external geocoding APIs.