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. 14 shown for “Jacques Kuyper” — 42 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-02 08:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Allegory on the Death of George Washington
Jacques Kuyper · 1800
Caperonia palustris (L.) A. St.-Hil.
Artist not stated in the record · 25 Dec 1910

The Drawing Academy at the Felix Meritis Society in Amsterdam
Reinier Vinkeles · ca. 1800

Mergus merganser
Artist not stated in the record · 16 Mar 1947

Lygodium volubile Sw.
Artist not stated in the record · 1913

Nephrolepis biserrata (Sw.) Schott
Artist not stated in the record · 1913
Sporobolus indicus (L.) R. Br.
Artist not stated in the record · 1913
Sporobolus jacquemontii Kunth
Artist not stated in the record · 1913

Pityrogramma calomelanos (L.) Link
Artist not stated in the record · 1913

Vittaria lineata (L.) Sm.
Artist not stated in the record
Digitaria horizontalis Willd.
Artist not stated in the record · 1913

Polybotrya caudata Kunze
Artist not stated in the record · 1913
Oryza latifolia Desv.
Artist not stated in the record · 1913

Phlebodium pseudoaureum (Cav.) Lellinger
Artist not stated in the record · 1913
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. 2 matched · 2 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.2 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 8016 matched · 40 examined · 2 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 2026-09-02 08:12 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.