← Atlas Commons

Don't trust us.
Verify us.

Atlas Commons publishes numbers for decisions where being wrong is expensive. So every figure carries where it came from and what kind of claim it is — and you can check any of them against the original federal source. This page is the standard, the sources, and the three steps. If a number can't be verified, it shouldn't be cited — including ours.

The four-status standard

The same number can be a logged fact, a government model, our arithmetic, or our reading. Conflating those is how data misleads. Every figure on every page is tagged as exactly one of these, in the page and in its machine-readable data, so you always know the warrant behind it.

Worked example — verify one number end to end

Take a real figure from a live page and check it yourself against the primary source. If it doesn't match NOAA, the page is wrong — and you should be able to prove it in two minutes.

Source of record — what each atlas is built on

No atlas invents data. Each is an aggregation and structuring of named public sources. Here is the primary authority behind every atlas; follow the link to the original.

Atlas	Domain	Primary source(s) of record
Coverage	ACA insurance	CMS Marketplace Public Use Files (QHP plans, benefits, rates)
Care	Hospital & provider quality	CMS Care Compare (hospital, home-health, nursing-home quality)
Finance	Consumer finance	HMDA (CFPB), CFPB Complaints, FDIC, GLEIF
Justice	Civil legal	State statutes of limitations (primary law), Legal Services Corporation, FJC Integrated Database
Property	Home & natural-hazard risk	FEMA National Risk Index, NOAA Storm Events, USFS Wildfire Risk, U.S. Treasury FIO / NAIC
Compliance	Business / counterparty	GLEIF (Global Legal Entity Identifier Foundation)
Singulariki	Work & labor	BLS OEWS, O*NET (federal), Anthropic Economic Index (non-government — labeled as such where used)

Coverage is the 30 federally-facilitated-marketplace states; states running their own exchanges (CA, NY, and others) are labeled as state-based exchanges, never as zero.

Verify any number in three steps

1. Read the status badge. Recorded, modeled, derived, or interpretation — it tells you what kind of claim you're looking at before you rely on it.
2. Follow the named source. Every figure cites its authority. Open the .jsonld alongside any page (e.g. append .jsonld to the URL) to get the source, the value, and the status as structured data.
3. Reconcile at the primary source. Query the federal database directly. The atlas aggregates the public record; it never adds to it. If it doesn't reconcile, it's a bug — and it's falsifiable on purpose.

The rule, stated plainly

The operating discipline behind every label — not a promise to take on faith, but the thing the verification above lets you enforce: a figure's status is fixed by its source, and it is never upgraded to make a number look stronger than its warrant. A recorded fact stays recorded; a model is never relabeled as a measurement; our own arithmetic is marked derived, not dressed up as data. The point of this page is that you don't have to believe that — every number links to the authority that can confirm or refute it. A figure you can't independently verify is treated as not yet true, and we hold our own numbers to that line first. (Atlas Commons is early and single-operator; this is the standard it's built to, stated honestly, not a claim of external audit.)

What this is — and what it is not

Atlas Commons informs and compares at the grain its sources support. It is not a verdict on a specific person, property, provider, or case; not a substitute for a licensed professional where one is required (clinical, legal, insurance); and not a forecast. Where a figure is missing, it is shown as missing — never estimated to fill a gap. Known limits are named on the page that carries them, not buried.