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 “Portrait of Guillaume Cardinal Dubois (1650-1723)” — 56 records examined, 5 dropped by the rights gate.
Archives queried 2026-09-10 20:56 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Cardinal Guillaume d'Estouteville (1403–1483), Bishop of Ostia and Cardinal Archbishop of Rouen
Mino da Fiesole (Mino di Giovanni) · third quarter 15th century
Portrait of Guillaume Cardinal Dubois (1650-1723)
Artist not stated in the record · 1724
Cardinal Fernando Niño de Guevara (1541–1609)
El Greco (Domenikos Theotokopoulos) · ca. 1600
Robert E. Lee
Frederic François Dubois-Tesselin, 1832 - ? · c. 1865
Portrait of a Young Man
Bronzino (Agnolo di Cosimo di Mariano) · 1530s
Portrait of a Man
Unidentified (Dutch) · ca. 1600-1650
Moses and Aaron before Pharaoh: An Allegory of the Dinteville Family
Master of the Dinteville Allegory · 1537
Guillaume Pecholier
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1800
Juan de Pareja (ca. 1608–1670)
Velázquez (Diego Rodríguez de Silva y Velázquez) · 1650
Portrait of Cardinal Francesco Martelli
Dominic Rossi · ca. 1750
Saint Andrew
Andrea Bregno · 1491
Portrait of a Cardinal
Artist not stated in the record · 1760-1780
Antoine Perrenot de Granvelle
Lambert Suavius · 1554
Portrait of Guillaume Thomas Raynal (1713-1796)
Artist not stated in the record · ca. 1790
The Annunciation
Hans Memling · ca. 1465–70
Portrait of Cardinal Mazarin
Jean Morin, French, 1605 - 1650 · 1650
Ancient Rome
Giovanni Paolo Panini · 1757
Portrait of Cardinal Antonio Barberino
Artist not stated in the record · 1647
Le cardinal Guillaume-Égon de Fürstenberg
Robert Nanteuil · 1671
Portrait of a Cardinal
Artist not stated in the record · 1725-1750
The Vision of Saint John
El Greco (Domenikos Theotokopoulos) · ca. 1608–14
Portrait of Girolamo Colonna, Cardinal
Artist not stated in the record · ca. 1750
The Public Viewing David's "Coronation" at the Louvre
Louis Léopold Boilly · 1810
Portrait of a Cardinal
Artist not stated in the record · 1620-1640
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. 16 matched · 16 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. 2863903 matched · 40 examined · 5 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 2026-09-10 20:56 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.