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 “Cave Lion, Cave Lion, Cave Lion” — 63 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-03 10:25 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Guardian Lion
Artist not stated in the record · mid-6th century

Cave Lion, Cave Lion, Cave Lion
Artist not stated in the record

Saint Jerome in a Cave
Albrecht Dürer · 1512

Garrya elliptica Douglas ex Lindl.
Artist not stated in the record · 16 Feb 1957

Saint Jerome in Penitence, in a Cave
Albrecht Altdorfer

Polypodium glycyrrhiza D.C. Eaton
Artist not stated in the record · 12 Nov 2004

Calligraphic Galleon
'Abd al-Qadir Hisari · dated 1180 AH/1766–67 CE

At a Fountain
Jean-Baptiste Lallemand, French, 1716 – 1803 · 1750-1775

Lions in a Mountainous Landscape
Théodore Géricault · ca. 1818–20

Cryptogramma stelleri (S.G. Gmel.) Prantl
Artist not stated in the record · 16 Jun 1934

Lion of the Atlas Mountains
Eugène Delacroix · 1829–30

Le lion s'en allant en Guerre (The Lion going to War)
Artist not stated in the record · 18th century
Sthulabhadra as a Lion in a Cave With His Sisters (top) / Sthulabhadra's Sisters Before Bhadrabahu (or Sthulabhadra) (bottom); Page from a Dispersed Kalpa Sutra (Jain Book of Rituals)
Artist not stated in the record · 15th century

Mixed Sketches with a Lion Statue, Mexico
Frederic Edwin Church, American, 1826–1900 · 1883–1884

A Hunting Scene
Piero di Cosimo (Piero di Lorenzo di Piero d'Antonio) · ca. 1494–1500

Design for a Ewer with Handle in the Shape of a Lion
Artist not stated in the record · ca. 1550–1600

Radha Crosses a River to Interview a Hindu Sage
Chokha · ca. 1820

Eared Seal, Sea Lion, Fur Seal
Artist not stated in the record

The Martyrdom of Saint Barbara
Lucas Cranach the Elder · ca. 1510

The Meditation on the Passion
Vittore Carpaccio · ca. 1490

Sampler
Artist not stated in the record · 1809
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. 23 matched · 23 examined · 2 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. 31913 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 10:25 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.