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. 20 shown for “S. T. M.” — 64 records examined, 44 dropped by the rights gate.
Archives queried 2026-09-03 23:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Quilt, Album pattern
Brown and Turner families · begun 1846
Chloris gayana Kunth
Artist not stated in the record · 10 Mar 1993

Cup with cover
M., London · 1581/82
Eleusine tristachya (Lam.) Lam.
Artist not stated in the record · 10 Mar 1993
![[Group of 266 Stereograph Views of the 1855 and/or 1867 Universal Expositions in Paris, France], by M. Leon](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2F1982-1182-2499_recto.jpg&w=3840&q=75)
[Group of 266 Stereograph Views of the 1855 and/or 1867 Universal Expositions in Paris, France]
M. Leon · 1850s–1910s
Eleusine indica (L.) Gaertn.
Artist not stated in the record · 10 Mar 1993

Morte d'Arthur
Sir Thomas Malory · 1893
Digitaria ciliaris (Retz.) Koeler
Artist not stated in the record · 10 Mar 1993

Cover
S. T. M. · 1854

Themeda triandra Forssk.
Artist not stated in the record · 10 Mar 1993

The New Zealanders
George French Angas · 1847

Paspalum urvillei Steud.
Artist not stated in the record · 10 Mar 1993

Book of the Dead of the Priest of Horus, Imhotep (Imuthes)
Artist not stated in the record · ca. 332–200 BCE

Megathyrsus maximus (Jacq.) B.K. Simon & S.W.L. Jacobs
Artist not stated in the record · 10 Mar 1993

Welcome: Stained Glass Window from the Mrs. George T. Bliss House, New York
John La Farge · 1908–9

Arthraxon hispidus (Thunb.) Makino
Artist not stated in the record · 4 Oct 1984

Cylindrical tankard
M. S. of Nuremberg, Germany · ca. 1720
Pavonia paniculata Cav.
Artist not stated in the record · 20 Sep 2001

Madonna and Child
Berlinghiero · possibly 1230s

Madonna and Child
Giovanni Bellini · late 1480s
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. 16221 matched · 24 examined · 13 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.11 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 2107641 matched · 40 examined · 31 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.9 shown
These figures describe the pass run at 2026-09-03 23:12 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.