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. 12 shown for “Guillaume Le Gangneur” — 24 records examined, 3 dropped by the rights gate.
Archives queried 2026-08-28 10:04 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

La Technographie. La Rizographie. La Caligraphie
Guillaume Le Gangneur · 1599

Guillaume Budé (1467–1540)
Jean Clouet · ca. 1536

Portrait of Monsieur Aublet
Guillaume Voiriot · ca. 1782

The Denial of Saint Peter
Caravaggio (Michelangelo Merisi) · 1610

Comtesse de La Tour-Maubourg (Marie-Louise-Charlotte-Gabrielle Thomas de Pange, 1816–1850)
Théodore Chassériau · 1841

Saint-Guilhem Cloister
Artist not stated in the record · late 12th–early 13th century

Histoire secrette de Neron, ov, Le festin de Trimalcion, traduit de Petrone, avec des notes historiques par M. Lavaur ...
M. (Guillaume de) Lavaur · 1726

Electro–Physiologie, Figure 64
Adrien Tournachon · 1854–56, printed 1862

The Banks of the Bièvre near Bicêtre
Henri Rousseau (le Douanier) · ca. 1908–09

The Ballet from "Robert le Diable"
Edgar Degas · 1871

Coin cabinet
Charles Percier · ca. 1809–19

The Prayer Book of Bonne of Luxembourg, Duchess of Normandy
Jean Le Noir · before 1349
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. 193 matched · 24 examined · 3 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-28 10:04 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.