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 “Olmsted, Arthur J” — 64 records examined, 17 dropped by the rights gate.
Archives queried 2026-09-08 23:46 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
King Arthur (from the Heroes Tapestries)
Artist not stated in the record · ca. 1400–1410

Conference on the Future of the Smithsonian, Smithsonian Publications Exhibit
Olmsted, Arthur J · 1927

Morte d'Arthur
Sir Thomas Malory · 1893

National Zoological Park, Bird House
Olmsted, Arthur J · 1937

Paul Poujaud, Mme. Arthur Fontaine, and Degas
Edgar Degas · 1895

National Zoological Park, Pachyderm House
Olmsted, Arthur J · 1937

Water cooler
Julius and Edward Norton · 1850–59

National Zoological Park, Small Mammal House
Olmsted, Arthur J · 1937

Roundel with King Arthur Riding on a Camel (from a Series of the Nine Heroes)
Artist not stated in the record · 1500–1510

National Zoological Park, Small Mammal House
Olmsted, Arthur J · 1937

Brooch
Carlo Giuliano · before 1896

National Zoological Park, Bird House
Olmsted, Arthur J · 1937

King Arthur
Julia Margaret Cameron · September 1874

Conference on the Future of the Smithsonian, Zoology Exhibit
Olmsted, Arthur J · 1927

To Arthur Haferkorn
Otto Greiner · 1904

Conference on the Future of the Smithsonian, Astrophysical Observatory
Olmsted, Arthur J · 1927

The Passing of Arthur
Julia Margaret Cameron · 1874

Conference on the Future of the Smithsonian, Botany Exhibit and Herbarium
Olmsted, Arthur J · 1927

A Forest at Dawn with a Deer Hunt
Peter Paul Rubens · ca. 1635

Conference on the Future of the Smithsonian, Smithsonian Library Exhibit
Olmsted, Arthur J · 1927

Bottle in the shape of a feline
Wari artist(s) · 600–900 CE

Conference on the Future of the Smithsonian, Botany Exhibit and Herbarium
Olmsted, Arthur J · 1927

The Death of Arthur
James Fittler · 1793

Conference on the Future of the Smithsonian, Zoology Exhibit
Olmsted, Arthur J · 1927
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. 1171 matched · 24 examined · 9 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. 1226975 matched · 40 examined · 8 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 2026-09-08 23:46 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.