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 “Relief attributed to Petamenophis” — 64 records examined, 21 dropped by the rights gate.
Archives queried 2026-08-28 11:38 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Relief attributed to Petamenophis
Artist not stated in the record · ca. 721–640 BCE

Kenyon Cox
Augustus Saint-Gaudens, 1 Mar 1848 - 3 Aug 1907 · 1889

Room from a hotel in the Cours d'Albret, Bordeaux
Barthélemy Cabirol · ca. 1785, with later additions

Adalbert John Volck Self-Portrait
Adalbert John Volck, 14 Apr 1828 - 26 Mar 1912 · c. 1900

Marble relief with a dancing maenad
Kallimachos · ca. 27 BCE–14 CE

Theodore Roosevelt
Sally James Farnham, 1869 - 1943 · 1906

Hercules and Achelous
Master of the Martyrdom of St. Sebastian · probably mid-17th century

Arabesque Panel
Jean Louis Prieur, French, 1732 - 1795 · ca. 1770

Terracotta neck-amphora (storage jar)
New York Nessos Painter · second quarter of the 7th century BCE

Gathering of Buddhas and bodhisattvas
Artist not stated in the record · 550-577

Terracotta volute-krater (bowl for mixing wine and water)
Painter of the Woolly Satyrs · ca. 450 BCE

Western Paradise of the Buddha Amitabha
Artist not stated in the record · 550-577

Neptune Riding a Dolphin
Peter Flötner · ca. 1530

Cameo
Artist not stated in the record · ca. 1900

Mars, Venus and Cupid with Vulcan at his forge (the Mantuan Roundel)
Gian Marco Cavalli · ca. 1500

Allegorical Figural Group Depicting the "Peace of Basel"
Royal Porcelain Manufactory, Berlin, German, established 1763 · late 18th century

Fragment of a marble relief with dancing maenads
Kallimachos · 1st–2nd century CE

Ornamented Cornice Designs
Jean Berain, the elder, French, 1640-1711 · 1711

Funerary relief
Artist not stated in the record · ca. 2nd–3rd century CE

Two Chairs and a Table
Jean Démosthène Dugourc, French, 1749–1825 · 1790

Allegorical figure
François Girardon · 1672–75

Lincrusta-Walton
Christopher Dresser, Scottish, 1834–1904 · 1881–1882

Saint Bridget of Sweden Receiving the Rule of Her Order
Agostino d'Antonio di Duccio · 1459

Dish
Artist not stated in the record · late 17th century
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. 696 matched · 24 examined · 0 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. 926007 matched · 40 examined · 21 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 2026-08-28 11:38 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.