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. 15 shown for “Photographic postcard of William Naylor Buckner Jr.” — 43 records examined, 22 dropped by the rights gate.
Archives queried 2026-08-31 21:46 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88

Photographic postcard of William Naylor Buckner Jr.
Artist not stated in the record · ca. 1910

L'Arlésienne: Madame Joseph-Michel Ginoux (Marie Julien, 1848–1911)
Vincent van Gogh · 1888–89

Photograph of William Naylor Buckner Jr. and Mary Elizabeth Cooke Buckner
Artist not stated in the record · June 22, 1918

Gardanne
Paul Cézanne · 1885–86

Parrot
William N. Buckner · 1909

Photographic postcard of Linnie King and Virginia Bryant Williams
Unidentified · 1941

Leaves
William N. Buckner · 1909

Wooden marionette wearing a green velvet suit and bow tie
William N. Buckner

Photograph of postcard of rural carrier's Christmas
Artist not stated in the record · 1915

Postcard of Phillips Hall at Roger Williams University
Artist not stated in the record · 1911-1928

Postcard of Phillips Hall at Roger Williams University
Artist not stated in the record · 1911-1928

Postcard of Phillips Hall at Roger Williams University
Artist not stated in the record · 1911-1928

Postcard of Phillips Hall at Roger Williams University
Artist not stated in the record · 1911-1928

Postcard of Phillips Hall at Roger Williams University
Artist not stated in the record · 1911-1928
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. 3 matched · 3 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.3 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 3096754 matched · 40 examined · 22 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 2026-08-31 21:46 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.