Financial truth, preserved over time.
Arche is infrastructure for querying corporate fundamentals exactly as they were known at a point in time. Built from first principles around determinism, immutability and provenance, it produces historical outputs you can reproduce and defend.
If historical data changes, the research built on it cannot be trusted. Arche makes past financial states observable, stable and auditable.
Most financial datasets are not truly historical. Filings are amended, restated and reclassified, while prior values are silently overwritten. Arche rejects that model. Time is treated as a first-class dimension, not a filter applied after the fact.
- Point-in-time resolution. Every request is resolved against an explicit “as-of” date, producing deterministic results without look-ahead bias.
- Immutable history. All statement versions are preserved. Restatements create new records; historical facts are never erased or revised.
- Contract-first API. Stable schemas, deterministic ordering and explicit error semantics form a surface designed for long-lived integration, not interpretation.
Arche is built for researchers, analysts, and engineers who need financial data they can reproduce months or years later in research, audits and production systems.
Built from first principles.
Arche is not a dashboard or a terminal. It is a foundational data layer. By modeling time, versioning and provenance explicitly, it provides a reliable answer to a simple but critical question: what did we know then?