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. 24 shown for “Denis Diderot” — 64 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-26 22:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Denis Diderot (1713–1784)
Jean Antoine Houdon · 1773
Galerie métallique des grands hommes français (Great Men of France)
Joseph-François Domard, French, 1792 - 1858 · 1817
Recueil de planches, sur les sciences, les arts libéraux, et les arts méchaniques : avec leur explication
Denis Diderot · 1762–72
Plate Illustrating Fanmaking from Diderot's "Encyclopédie"
Denis Diderot, French, 1713–1784 · 1751–1766
Planches pour l'Encyclopédie, ou pour le Dictionaire raisonné des sciences, des arts libéraux, et des arts méchaniques, avec leur explication
Denis Diderot · 1765–1776
Plate Illustrating Fanmaking from Diderot's "Encyclopédie"
Denis Diderot, French, 1713–1784 · 1751–1766
Encyclopédie, ou Dictionnaire raisonné des sciences, des arts et des métiers
Denis Diderot · 1751–65
Plate Illustrating Fanmaking from Diderot's "Encyclopédie"
Denis Diderot, French, 1713–1784 · 1750–1766
Encyclopédie, ou Dictionnaire raisonné des sciences, des arts et des métiers, par une société de gens de lettres
Denis Diderot · 1758–1771
Plate Illustrating Fanmaking from Diderot's "Encyclopédie"
Denis Diderot, French, 1713–1784 · ca. 1751–1766
Portrait of Denis Diderot
Augustin de Saint-Aubin · 1766
Couturiere, from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1769
Les oeuvres morales de Mr. Diderot : contenant son traité De l'amitié, et celui Des passions
Marie Geneviève Charlotte Darlus Thiroux d'Arconville · 1770
Sellier-Carossier, pl. X from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1771
Sabine Houdon (1787–1836)
Jean Antoine Houdon · 1788
Sellier-Carossier, pl. XIII from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1771
The Dispatch of the Messenger
François Boucher · 1765
Sellier-Carossier, pl. XVIII from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1771
Istruzione elementare per gli studiosi della scultura
Francesco Carradori · 1802
Sellier-Carossier, pl. XVI from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1771
Fourbisseur (Swordmaking) (plate VII, Fourbisseur section, Encyclopédie, or Recueil de Planches sur les Sciences, les Arts Mechaniques..., vol. IV)
J. R. Lucotte · 1765
Sellier-Carossier, pl. VI from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1771
Shoulao
Chantilly · ca. 1735–40
Sellier-Carossier, pl. XIV from "Encyclopédie ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers"
Artist not stated in the record · 1771
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. 37 matched · 24 examined · 1 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. 853 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 2026-08-26 22:12 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.