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. 24 shown for “Claude Nicolas Ledoux” — 64 records examined, 1 dropped by the rights gate.
Archives queried 2026-09-03 11:49 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Design for a Stage Set
Claude Nicolas Ledoux

Vue de la Maison de M. Le Doux (View of Mr. Le Doux's House)
Jean-Nicolas-Louis Durand · 1787–92

Portal of the Hôtel d'Uzès by Ledoux
Anonymous, French, 18th century · 18th century

Design for a country villa
Claude-Nicolas Ledoux, French, 1736 – 1806 · 1765-1770

The Trojan Women Setting Fire to Their Fleet
Claude Lorrain (Claude Gellée) · ca. 1643

Maison de Mr. de Mèzièrres à Eaubonne Vallée de Montmorency par Mr. le Doux Architect
Jean-Charles Krafft, French, 1764 - 1833 · 1812

Blind Orion Searching for the Rising Sun
Nicolas Poussin · 1658

Pavillon de Louveciennes éxécuté près St. Germain pour Me Dubarry par Mr le Doux Architecte
Jean-Charles Krafft, French, 1764 - 1833 · 1812

The Abduction of the Sabine Women
Nicolas Poussin · probably 1633–34

Project for a Country Villa
Artist not stated in the record · ca. 1765–70

Nicolas de Neufville, Marquis, later Duke of Villeroi, Marshal of France (1598–1685)
Claude Varin · 1651

Ornament Design
Jean-Bernard Turreau, French, 1672 - 1731 · 1716

Gallerie des Modes et Costumes Français Desinés D'Apres Nature
G. F. R. Molé · 1778 [to 1787]

Léda
François Boucher, French, 1703–1770 · 1740

Potpourri vase (pot-pourri gondole)
Sèvres Manufactory · 1757

Gunmakers Workshop Surrounded by Ornament and Names of Parisian Gunmakers
C. Jacquinet, French, active 1650 – 1660 · 1660

Brother Philippe's Geese
Nicolas Lancret · ca. 1736

Title Page
Jean-Bernard Turreau, French, 1672 - 1731 · 1716-19

The Billiard Room
Nicolas Antoine Taunay · after 1810

Cartouche Design
Jean-Bernard Turreau, French, 1672 - 1731 · 1716-19

Bacchanal
Nicolas Poussin · ca. 1635–36

Ornament Design
Jean-Bernard Turreau, French, 1672 - 1731 · 1716

The Agony in the Garden
Nicolas Poussin · 1626–27

Ornament Design
Jean-Bernard Turreau, French, 1672 - 1731 · 1716
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. 153 matched · 24 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.12 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 15809 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 2026-09-03 11:49 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.