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 “Pierre Cardin, French, founded 1950” — 64 records examined, 26 dropped by the rights gate.
Archives queried 2026-09-10 18:29 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Belles Heures of Jean de France, duc de Berry
The Limbourg Brothers · 1405–1408/1409

Necktie worn by Ira Tucker
Pierre Cardin, French, founded 1950 · after 1950

Longcase astronomical regulator
Ferdinand Berthoud · ca. 1768–70

Red and cream loafers designed by Pierre Cardin and worn by Fats Domino
Pierre Cardin, French, founded 1950 · late 20th Century

Pope Benedict XIV (Prospero Lambertini, 1675–1758)
Pierre Hubert Subleyras · 1746

Portrait of Guillaume Cardinal Dubois (1650-1723)
Artist not stated in the record · 1724

Moses and Aaron before Pharaoh: An Allegory of the Dinteville Family
Master of the Dinteville Allegory · 1537

Portrait of Cardinal Jaques Benigne Bossuet (1627-1704)
Artist not stated in the record · 1723

Chapel from Notre-Dame-du-Bourg at Langon
Artist not stated in the record · after 1126

Portrait of Juan Pablo Oliva (1600-1681)
Artist not stated in the record · ca. 1670

Medallion
Artist not stated in the record · 13th century (before 1227)

LA THÉOLOGIE
Clément Pierre Marillier, French, 1740 – 1808 · 1759–80

Medallion
Artist not stated in the record · before 1227

LA THÉOLOGIE
Clément Pierre Marillier, French, 1740 – 1808 · 1759–80

Table
Pierre Gole · ca. 1660

Bronzes and Antique Fragments Found at Herculaneum
Artist not stated in the record · 1748–1819

Blind Orion Searching for the Rising Sun
Nicolas Poussin · 1658

ÉTABLISSEMENT DE L’ÉCOLE ROYALE MILITAIRE
Saint-Aubin Gabriel de, French, 1724 – 1780 · 1766

Midas Washing at the Source of the Pactolus
Nicolas Poussin · ca. 1627

Sepulchral Monument of James III and Henry Cardinal York
Artist not stated in the record · ca. 1818

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

Dracontomelon duperreanum Pierre
Artist not stated in the record · May 1951

Charles Claude de Flahaut (1730–1809), Comte d'Angiviller
Jean-Baptiste Greuze · 1763

Ziziphus cambodiana Pierre
Artist not stated in the record · 28 Apr 1952
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. 143 matched · 24 examined · 7 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. 594693 matched · 40 examined · 19 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 18:29 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.