Syderial builds the governed memory substrate for AI: claims-first, bitemporal, signed, and non-bypassable because it sits in the inference path. We publish what we discover, distribute the specification, and work with a small number of teams whose decisions deserve a verifiable past.
Sidereal time is time kept by the stars rather than the sun, the timekeeping astronomers use when the measurement has to be exact. Navigators at sea trusted the same fixed points: when everything around you moves, you steer by what does not.
That is the company in one image. Reality is the fixed star. The record is the orbit: continuity, measured and intentional, returning to the reference point. The reference point, not a reference point.
Not the model, not the document, not the database. The record exists to stay faithful to the world, and to admit, precisely, when it lagged behind.
Every consequential domain became trustworthy the same way: by acquiring a record. There is no shortcut through better generation. The bookkeeping has to exist.
A substrate is judged over decades, not demos. We would rather be verifiably right about a small set of invariants than impressively vague about everything.
Money has accounting. Operations have ERP. Relationships have CRM. People have identity. Intelligence has nothing yet. Models are entering the inference path of regulated, consequential work without a record a buyer can verify.
The substrate that sits in that path, claims-first and signed, becomes the system of record for the work. We build it to a published specification, so the category forms around something correct, not something loud.
We publish discoveries as papers, notes, and benchmarks, including the ones that complicate our own argument. The specification is the center of gravity; the product is its consequence. We are a small, senior team, and we intend to stay hard to summarize and easy to verify.
Read the research →Teams putting agents into real, consequential work. Direct founder access, credited usage while we build, and a roadmap shaped by what you ship.
We are building a substrate judged over decades, not demos. If you back infrastructure early and want depth before reach, we should talk.