OpenTwo 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. 15 shown for “Claude-Nicolas Ledoux, French, 1736 – 1806” — 43 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-03 13:58 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
Design for a country villa
Claude-Nicolas Ledoux, French, 1736 – 1806 · 1765-1770
Portal of the Hôtel d'Uzès by Ledoux
Anonymous, French, 18th century · 18th century
Maison de Mr. de Mèzièrres à Eaubonne Vallée de Montmorency par Mr. le Doux Architect
Jean-Charles Krafft, French, 1764 - 1833 · 1812
Washstand (athénienne or lavabo)
Charles Percier · 1800–1814
Pavillon de Louveciennes éxécuté près St. Germain pour Me Dubarry par Mr le Doux Architecte
Jean-Charles Krafft, French, 1764 - 1833 · 1812
Project for a Country Villa
Artist not stated in the record · ca. 1765–70
Vue de la Maison de M. Le Doux (View of Mr. Le Doux's House)
Jean-Nicolas-Louis Durand · 1787–92
NEPTUNE
Claude Gillot, French, 1673–1722 · 1729–37
FLORE
Claude Gillot, French, 1673–1722 · 1729–37
APOLLON
Claude Gillot, French, 1673–1722 · 1729–37
BACCUS
Claude Gillot, French, 1673–1722 · 1729–37
Ornament Design
Jean-Bernard Turreau, French, 1672 - 1731 · 1716
DIANE
Claude Gillot, French, 1673–1722 · 1729–37
APOLLON
Claude Gillot, French, 1673–1722 · 1729–37
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. 3 matched · 3 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.3 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 97581 matched · 40 examined · 0 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 13:58 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.