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 “Swertia macrosperma (C.B. Clarke) C.B. Clarke” — 64 records examined, 5 dropped by the rights gate.
Archives queried 2026-09-03 00:03 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

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · 1928

Marble portrait head of the Emperor Constantine I
Artist not stated in the record · ca. 325–370 CE

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · 13 Sep 1885

Armor of Henry II, King of France (reigned 1547–59)
Jean Cousin the Elder · ca. 1555

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · Sep 1910

Shoes
Artist not stated in the record · ca. 1830

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · Aug 1922

Shoes
Artist not stated in the record · 1830

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record

Shoes
Artist not stated in the record · 1860–79

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · 25 Aug 1939

Slippers
Artist not stated in the record · 1830

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · May 1922 to Oct 1922

Slippers
Artist not stated in the record · 1720–39

Swertia macrosperma (C.B. Clarke) C.B. Clarke
Artist not stated in the record · Sep 1922 to Oct 1922

Coat
Artist not stated in the record · ca. 1893

Swertia bimaculata (Siebold & Zucc.) Hook. f. & Thomson ex C.B. Clarke
Artist not stated in the record · 26 Sep 1884

A Piece Offering!! Memoirs, Life, Letters &c. of M. A. Clarke
Thomas Rowlandson · April 22, 1809

Swertia alata C.B. Clarke
Artist not stated in the record · 15 Sep 1964

Aman-Jean (Portrait of Edmond François Aman-Jean)
Georges Seurat · 1882–83

Swertia thomsonii C.B. Clarke
Artist not stated in the record · 28 Aug 1921

The Card Players
Paul Cézanne · 1890–92

Swertia cordata (Wall. ex G. Don) C.B. Clarke
Artist not stated in the record · 3 Oct 1949
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. 320 matched · 24 examined · 5 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. 74111 matched · 40 examined · 0 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 2026-09-03 00:03 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.