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. 21 shown for “Hoffman, W. J” — 64 records examined, 42 dropped by the rights gate.
Archives queried 2026-09-03 19:41 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
An Address to the Workmen in the Pottery on the Subject of Entering into the Service of Foreign Manufacturers
Josiah Wedgwood · 1783

Birthplace of Spencer Fullerton Baird (1823-1887)
Hoffman, W. J · 1870

Productions of the Leeds Photographic Society
T. Dixon · 1852

Asio otus wilsonianus
Artist not stated in the record · 19 May 1871

Cosmetic Spoon in the Shape of a Tilapia with Water Lilies
Artist not stated in the record · ca. 1550–1300 BCE

Melospiza melodia
Artist not stated in the record

The Three Ages of Humans
Dosso Dossi (Giovanni de Lutero) · ca. 1515

Passerina amoena
Artist not stated in the record · 25 May 1871

The Public Viewing David's "Coronation" at the Louvre
Louis Léopold Boilly · 1810
Omphalea diandra L.
Artist not stated in the record · 16 Aug 1997

Akhenaten Sacrificing a Duck
Artist not stated in the record · ca. 1347–1330 BCE

Salpichlaena volubilis (Kaulf.) J. Sm.
Artist not stated in the record · 1 Nov 1992

Sofa
John Henry Belter · 1850–60

Sticherus nervatus J. Gonzales
Artist not stated in the record · 3 Nov 1992

Armchair
John Henry Belter · 1850–60

Heteropterys macrostachya A. Juss.
Artist not stated in the record · 15 Aug 1997

Watch in the form of a tulip
Monée · 19th century

Tetrapterys discolor (G. Mey.) DC.
Artist not stated in the record · 15 Aug 1997

Stigmaphyllon sinuatum (DC.) A. Juss.
Artist not stated in the record · 15 Aug 1997

Hippocratea volubilis L.
Artist not stated in the record · 15 Aug 1997

Moranopteris nana (Fée) R. Y. Hirai & J. Prado
Artist not stated in the record · 27 May 1992
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. 8767 matched · 24 examined · 15 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.9 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1948298 matched · 40 examined · 27 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 19:41 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.