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. 12 shown for “Food Case Probably Containing a Preserved Duck” — 64 records examined, 40 dropped by the rights gate.
Archives queried 2026-08-27 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.
Food Case Probably Containing a Preserved Duck
Artist not stated in the record · ca. 1550–1479 BCE

Food Case Probably Containing a Preserved Pigeon
Artist not stated in the record · ca. 1550–1479 BCE

Food Case Probably Containing a Preserved Pigeon
Artist not stated in the record · ca. 1550–1479 BCE

Half of a Food Case Containing a Preserved Goose
Artist not stated in the record · ca. 1550–1479 BCE

Clock with pedestal
André Charles Boulle · ca. 1690

Vessel with mythological scene
Metropolitan Painter · 600–800 CE

Astronomical table clock
Jeremias Metzger · 1568

Katharina Merian
Hans Brosamer

The Emperor's Carpet
Artist not stated in the record · second half 16th century

Bottle with caiman
Cupisnique artist(s) · 1000–800 BCE

Urpu (jar)
Inca artist(s) · 1400–1535 CE

The Marriage Feast at Cana
Juan de Flandes · ca. 1497
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. 126 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. 1823022 matched · 40 examined · 40 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.0 shown
These figures describe the pass run at 2026-08-27 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.