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A digital garden, tended with care

Johnx.co/Research Notes
ResearchAbout

Subscribe to get a short note when I publish something new.

A digital garden, tended with care

Johnx.co/Research Notes
ResearchAbout

Prototype · 2021

Geolocker

Built it (Astral)Historical

Geolocker prototyped a spatial data registry on Ethereum and IPFS, aimed at sharing authoritative zones between governments and autonomous-vehicle makers.

astral.global/geolocker

Purpose

Autonomous vehicles need authoritative zones from governments; we prototyped a registry where those zones could be published and trusted.

Approach

An early prototype storing GeoJSON zones on IPFS with on-chain anchors on Ethereum, aimed at bridging governments and autonomous-vehicle makers.

Status

Archived experiment, 2021.

astralethereumipfs

Connections

Related Notes

Astral API

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The Astral API indexes location attestations from the Ethereum Attestation Service across chains and serves them through OGC-compliant REST and GraphQL interfaces backed by PostGIS.

Astral Compute

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Astral Compute evaluates spatial predicates -- distance, containment, intersection -- inside a trusted execution environment and returns cryptographically signed results that a third party can verify.

Astral Docs: Location Proofs

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The Astral documentation describes location proofs as verifiable artifacts pairing a claim about the timing and position of an event with corroborating evidence, graded along a certainty spectrum rather than treated as absolute.

Astral Docs: Location Records

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The Astral documentation describes location records -- signed, verifiable location data artifacts that add cryptographic attribution and integrity checking to raw geospatial data.

Astral: a spatial extension for the decentralized web

Active

This FOSS4G North America 2025 talk introduces Astral: the Location Protocol for signed spatial records, a modular library of location-proof strategies, and Spatial.sol utilities for smart contracts.

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