# Atlas Commons > A public, agent-native knowledge commons: authoritative U.S. open data turned into source-backed, machine-citable > answers across 9 atlases (25 datasets). Built for the machines that will cite it — every > figure carries a named public source and a four-status warrant, and you can re-fetch the source yourself. CC0. Read this first — the agent contract: - **The LLM is never the authority.** Every consequential figure resolves to a named public source (CMS, FDA, FDIC, CFPB, NOAA, the Dept. of Education, the federal courts, DOL). You do not take the commons' word — you re-fetch the source. - **Four-status warrant.** Every claim is labeled RECORDED (an occurred fact), MODELED (an authority's index/expected value), DERIVED (a disclosed in-house calculation), or INTERPRETATION (a framing). Weight each accordingly. - **No fabrication, honest residue.** Where data is withheld, a sample, or a known limit, the page and the [corrections ledger](https://atlas-commons-vibe.ryanjhunter.workers.dev/corrections) say so. Volume is never a ranking; a complaint/recall/flag is never a verdict. - **How to cite & verify:** see [https://atlas-commons-vibe.ryanjhunter.workers.dev/cite](https://atlas-commons-vibe.ryanjhunter.workers.dev/cite) — the citation format, the @id → source → re-fetch recipe, and the full machine-endpoint map. ## The atlases - **Coverage Atlas** — https://coverage-atlas.ryanjhunter.workers.dev — U.S. health-coverage enrollment + ACA marketplace plan premiums, by geography. (4 datasets; every entity page also serves `.jsonld` / `.md` / `.json`). - **Care Atlas** — https://care-atlas.ryanjhunter.workers.dev — CMS Care Compare — hospitals, nursing homes (incl. the safety watchlist), home-health, hospice, and physician Open Payments. (5 datasets; every entity page also serves `.jsonld` / `.md` / `.json`). - **Property Atlas** — https://property-atlas.ryanjhunter.workers.dev — NOAA storm history + NFIP flood-claims by county; the per-county hazard picture. (5 datasets; every entity page also serves `.jsonld` / `.md` / `.json`). - **Finance Atlas** — https://finance-atlas.ryanjhunter.workers.dev — FDIC bank verification, HMDA lending access by state, and CFPB consumer complaints by company and by product. (3 datasets; every entity page also serves `.jsonld` / `.md` / `.json`). - **Justice Atlas** — https://justice-atlas.ryanjhunter.workers.dev — Federal court caseload by district, civil statutes of limitations, and the free legal-aid directory. (3 datasets; every entity page also serves `.jsonld` / `.md` / `.json`). - **Compliance Atlas** — https://compliance-atlas.ryanjhunter.workers.dev — Regulatory jurisdiction reference. (1 dataset; every entity page also serves `.jsonld` / `.md` / `.json`). - **Education Atlas** — https://education-atlas.ryanjhunter.workers.dev — College Scorecard ROI — cost/debt/earnings by institution and by field of study. (2 datasets; every entity page also serves `.jsonld` / `.md` / `.json`). - **Drug & Device Atlas** — https://drug-device-safety-atlas.ryanjhunter.workers.dev — openFDA drug & device recalls, by product and by recalling firm. (1 dataset; every entity page also serves `.jsonld` / `.md` / `.json`). - **Benefits Atlas** — https://benefits-intelligence-atlas.ryanjhunter.workers.dev — DOL Form 5500 employer benefit-plan filings (a labeled sample). (1 dataset; every entity page also serves `.jsonld` / `.md` / `.json`). ## Institutional & provenance surfaces - [/cite](https://atlas-commons-vibe.ryanjhunter.workers.dev/cite) — How to cite & verify any Atlas Commons claim — the agent citation + provenance protocol + the full machine-endpoint map. - [/the-research-object](https://atlas-commons-vibe.ryanjhunter.workers.dev/the-research-object) — How a public fact becomes a machine-citable research object (the four-status claim model). - [/the-answer-standard](https://atlas-commons-vibe.ryanjhunter.workers.dev/the-answer-standard) — The answer standard: truth → meaning → options → action → escalation. - [/the-catalog](https://atlas-commons-vibe.ryanjhunter.workers.dev/the-catalog) — The Data Catalog — every public dataset, sourced and citable (machine: /catalog.jsonld). - [/trust](https://atlas-commons-vibe.ryanjhunter.workers.dev/trust) — The verification standard — don't trust us, re-derive us (machine: /trust.json). - [/methodology](https://atlas-commons-vibe.ryanjhunter.workers.dev/methodology) — Per-atlas methodology + the named limit of each (machine: /methodology.json). - [/corrections](https://atlas-commons-vibe.ryanjhunter.workers.dev/corrections) — The known-issues ledger — what is withheld, fixed, limited, pending (machine: /corrections.json). - [/accounting](https://atlas-commons-vibe.ryanjhunter.workers.dev/accounting) — The public accounting — the commons by the numbers (machine: /accounting.json). - [/charter](https://atlas-commons-vibe.ryanjhunter.workers.dev/charter) — The 12-article Public Knowledge Charter (machine: /charter.json). ## Machine access - Every entity page serves agent-native alternates: `.jsonld` (research objects with four-status epistemics), `.md` (the page as Markdown), `.json` (the render-model). State/hub pages add `.toml` / `/context.md` where noted. - Each atlas serves its own `/llms.txt` and `/sitemap.xml` for full per-atlas enumeration. - The dataset inventory is machine-readable at [https://atlas-commons-vibe.ryanjhunter.workers.dev/catalog.jsonld](https://atlas-commons-vibe.ryanjhunter.workers.dev/catalog.jsonld); the institution's self-report at [https://atlas-commons-vibe.ryanjhunter.workers.dev/accounting.json](https://atlas-commons-vibe.ryanjhunter.workers.dev/accounting.json). ## Constraints (so an agent cites correctly) - This is a reference + decision-support commons. It informs, compares, and routes to official sources; it does NOT give medical, legal, financial, or investment advice, and is not a recommendation engine. - Currency: each dataset's source release is in the catalog; the institution is early and single-operator (see the [public accounting](https://atlas-commons-vibe.ryanjhunter.workers.dev/accounting)). Re-fetch the source for the authoritative current value. - License: CC0. Attribution appreciated: "Atlas Commons (https://atlas-commons-vibe.ryanjhunter.workers.dev), from ."