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 “Quercus alba L.” — 64 records examined, 29 dropped by the rights gate.
Archives queried 2026-09-05 20:17 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Armor of the Dukes of Alba
Lucio Piccinino · ca. 1575–85
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 1882

Furtive message (Messaggio furtivo)
Luigi Crosio · 1870–71
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 20 Sep 1882

José Costa y Bonells (died l870), Called Pepito
Goya (Francisco de Goya y Lucientes) · ca. 1810
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 20 Sep 1882

Lotus Flower Inlay
Artist not stated in the record · ca. 1347–1330 BCE
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 2 May 1884

Narcisa Barañano Gayoso de Goicoechea
Goya (Francisco de Goya y Lucientes) · ca. 1805
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 11 Jun 1888

The Translation of the Holy House of Loreto
Saturnino Gatti · ca. 1490
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · Oct 1916

Madonna and Child with Saints Philip and Agnes
Donato de' Bardi · ca. 1425–30
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 13 Aug 1887

Processional Crucifix
Pietro di Francesco Orioli · ca. 1480s
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 6 May 1888

"Spotted Forktail", Folio from the Shah Jahan Album
Abu'l Hasan · recto: ca. 1610–15; verso ca. 1540
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 24 Aug 1887

Cassone
Artist not stated in the record · ca. 1550–80 (rebuilt, with extensive replacements)
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 24 Aug 1887

Sebastián Martínez y Pérez (1747–1800)
Goya (Francisco de Goya y Lucientes) · 1792
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 27 Aug 1887

Composed Armor
Wolfgang Grosschedel · ca. 1550–80
Quercus alba L. x Q. stellata Wangenh.
Artist not stated in the record · 13 Aug 1887
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. 37 matched · 24 examined · 4 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. 1312284 matched · 40 examined · 25 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 2026-09-05 20:17 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.