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. 19 shown for “Salomon de Caus” — 64 records examined, 7 dropped by the rights gate.
Archives queried 2026-08-29 03:30 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Miscellany of the Work of Salomon de Caus
Salomon de Caus · 1612–20

Illustration for "Oeuvres de Salomon Gessner"
Salomon Gessner, Swiss, 1730 - 1788 · ca. 1799

Tagetes minuta L.
Artist not stated in the record · 25 Mar 1944

Cymbopogon flexuosus (Nees ex Steud.) Will. Watson
Artist not stated in the record · 27 Feb 1922

Jean Salomon Fazi
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1800

Blechnum loxense (Kunth) Hook. ex Salomon var. loxense
Artist not stated in the record · 17 Sep 2003

Blechnum loxense (Kunth) Hook. ex Salomon var. loxense
Artist not stated in the record · 15 Sep 2003

Salamon de Caus at Bicêtre
Jean-Baptiste Courtois · 1640–76

Cansjera rheedii J.F. Gmel.
Artist not stated in the record · Nov 1932

Manuel Osorio Manrique de Zuñiga (1784–1792)
Goya (Francisco de Goya y Lucientes) · 1787–88

Blechnum loxense (Kunth) Hook. ex Salomon var. loxense
Artist not stated in the record · 25 Sep 1948

Portrait of Gerard de Lairesse
Rembrandt (Rembrandt van Rijn) · 1665–67

Blechnum loxense (Kunth) Hook. ex Salomon var. loxense
Artist not stated in the record · 12 Apr 1972

Venus and Cupid
Lorenzo Lotto · 1520s

Blechnum loxense (Kunth) Hook. ex Salomon var. loxense
Artist not stated in the record · 12 Aug 1953

Juan de Pareja (ca. 1608–1670)
Velázquez (Diego Rodríguez de Silva y Velázquez) · 1650
Peep-show, Vue de Jerusalem, Jérusalem, Ville Capitale de la Palestine Sous David et Salomon, est Si Célébre Par Son Temple et Les Magnifiques Ouvrages que Ses Deux Princes Firent Batir...
Artist not stated in the record · ca. 1750

Dish with Joseph and His Brothers
Antoine Conrade · ca. 1630–45

Blechnum loxense (Kunth) Hook. ex Salomon var. loxense
Artist not stated in the record · 21 May 1964
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. 653 matched · 24 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. 612974 matched · 40 examined · 7 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 2026-08-29 03:30 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.