Spec · 2025
Astral Docs: Location Records
The Astral documentation describes location records -- signed, verifiable location data artifacts that add cryptographic attribution and integrity checking to raw geospatial data.
Purpose
A verifiable spatial data registry needs a concrete record format. This documents ours, as implemented.
Approach
Documentation for location records in Astral -- signed location data artifacts adding attribution and integrity checking to raw GeoJSON. A functional prototype of the registry record concept.
Status
Live documentation, maintained.
Connections
Related Notes
Astral API
PreviewThe 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
PreviewAstral 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
ActiveThe 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: a spatial extension for the decentralized web
ActiveThis 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.
Astral SDK
ActiveThe Astral SDK is a TypeScript library for creating and verifying location attestations -- signed records that bind location data to a signer and a time, off-chain or on-chain via the Ethereum Attestation Service.