Astrolabe.
Astrolabe is the audit measurement-engine kernel — it produces the sha-pinned, Merkle-rooted evidence record from a fielded AI tool deployment.
What this is.
Use. capability · instrument.
Source. 3 concentric rings + alidade + cardinal ticks.
Register. 00 · Icon set — one of the 17 registers of the PLANiSPHERE corpus library.
See it work.
Planisphere measures your tool deployment against Astrolabe and seals the result into a signed, Merkle-rooted evidence record. The grade recomputes on your own hardware; the model state never crosses the boundary.
Promise. measurement
Astrolabe is the audit measurement-engine kernel — it produces the sha-pinned, Merkle-rooted evidence record from a fielded AI tool deployment.
Answers: What does Astrolabe measure, and how is the measurement reproducible?
Adjacent marks, same instrument.
Astrolabe is a reference mark in the Icon set register. Read the related buyer-facing product context at /evidence.
AI-craft Carrier reg 00 · fleet platform · the deck the fleet sits on Backstaff reg 00 · reserve · ops hub Coherence reg 00 · coherence · phase-aligned signature Drafting Compass reg 00 · Methodology · preprint Drift reg 00 · drift · signature displacementSibling marks. Icon set
See the record Astrolabe asks for.
The console shows the evidence; the docs show the endpoints; the briefing shows what the product does and does not claim.