Research that keeps its receipts

An answer is only as good as the evidence it remembers.

Circa turns a research question into a clear answer with every claim tied to the exact source text behind it, frozen in time and ready to inspect.

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CIRCA / 042 AS OF 26 JUN 2026

WHAT MAKES A CLAIM VERIFIABLE?

A claim is verifiable when its cited evidence can be checked directly, without repeating the original research.

01 / EVIDENCE SUPPORTED

"Every claim links to a snapshot of the source as it read, so you check it by reading, not by redoing."

SOURCE SNAPSHOT - CIRCA FORMAT SPEC

VERIFIEDAGAINST SNAPSHOT

The Circa method

Built to be checked, not merely trusted.

Most research hands you a conclusion and a list of links. Circa preserves the chain between each statement and the exact evidence that supports it.

Search broadly for relevant, credible sources.

Preserve the source exactly as it was read.

Tie every claim to verbatim supporting text.

Check quotes mechanically against frozen snapshots.

Use cases

Due diligence Summaries that preserve the evidence trail behind each material claim.
Market research Briefs that remain inspectable after source pages change.
Technical evaluation Findings that separate supported claims from gaps and mismatches.

Research should travel with its proof.

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