Two archives, queried live.
Every record below comes from The Met or Smithsonian Open Access and was filtered on that archive’s own rights field before it reached this page. 14 shown for “Eugène Leroux” — 42 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-27 02:47 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Le Suicide, from "Les Artistes Contemporains"
Eugène Leroux · 1846

Chickens and Ducks
Eugène Leroux, French, born Caen, France 1807-died Paris, France 1863 · n.d.

Doorway from Moutiers-Saint-Jean
Artist not stated in the record · ca. 1250

Monkey in the Mirror
Eugène Leroux, French, born Caen, France 1807-died Paris, France 1863 · n.d.

Forêt de Fontainbleau
Eugène Leroux, French, born Caen, France 1807-died Paris, France 1863 · Salon 1850-1851

Poa cusickii subsp. epilis (Scribn.) W.A. Weber
Artist not stated in the record · 21 Jul 1892

Sparganium eurycarpum Engelm.
Artist not stated in the record · 5 Aug 2024

Hibiscus moscheutos L.
Artist not stated in the record · 4 Sep 2024

Marquis De Lafayette
Jean Marie Leroux, 1788 - 1870 · 1824

Hottonia palustris L.
Artist not stated in the record · 24 Jul 1870
Bouteloua simplex Lag.
Artist not stated in the record · 28 Aug 1901
Sporobolus arenicola P.M. Peterson
Artist not stated in the record · 25 Aug 1897

Senecio integerrimus Nutt.
Artist not stated in the record
Muhlenbergia wrightii Vasey ex J.M. Coult.
Artist not stated in the record · 12 Aug 1901
Where these records came from.
Two archives are wired, and only two. Each one is filtered on its own rights field — never on a title match, and never on the presence of an image file.
- The Met Collection API (Open Access)Rights field:
isPublicDomain. 2 matched · 2 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.2 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 9574 matched · 40 examined · 1 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.12 shown
These figures describe the pass run at 2026-08-27 02:47 UTC, during this request. A completed pass is kept for 24 hours and replayed for an identical search, which is what keeps repeated queries inside Smithsonian’s 30-requests-per-hour allowance. A pass in which either archive failed to answer is never kept — an outage must not be replayed as though it were a finding about the catalogue.
Wikimedia Commons and the Library of Congress are deliberately not wired. Wikimedia was confirmed, on a live query, to return CC-BY material inside the same result set as genuine public domain works, and filtering it safely has not been designed yet. loc.gov was blocked by bot detection during the source evaluation, so its rights vocabulary has never been observed — and nothing here is built on a field nobody has read.
An image file is a rights claim. It never travels without its field.