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. 22 shown for “Paper weight with chi dragons” — 51 records examined, 22 dropped by the rights gate.
Archives queried 2026-09-03 03:56 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Paper weight with chi dragons
Artist not stated in the record · 18th century

Rhacomitrium anomodontoides
Artist not stated in the record · 5 Nov 1991

The Forge–Passage du Dragon
James McNeill Whistler · 1894

Anax parthenope julius
Artist not stated in the record · 18 Jul 1939

The Attarouthi Treasure - Chalice
Artist not stated in the record · 500–650

Dicranoloma cylindrothecium (Mitt.) Sakurai
Artist not stated in the record · 5 Nov 1991

Myriad Birds:A Playful Poetry Contest (Momo chidori kyōka-awase), 2 vols.
Kitagawa Utamaro · 1790

Suncus murinus
Artist not stated in the record · 4 Apr 1968

Spring Dawn over the Elixir Terrace
Lu Guang · ca. 1369

Design for a Hanging Sacristy Cupboard
Artist not stated in the record · ca. 1800

Ten Sites Associated with Ruan Yuan
Wang Jun · dated 1883

Fulica rufifrons
Artist not stated in the record · 29 Feb 1992

Whiling Away the Summer at the Ink-Well Thatched Hut
Wu Li · 1679

Podiceps major
Artist not stated in the record · 29 Feb 1992

Panel Illustrating Feminine Virtue: The Art of Cooking or Hospitality (?)
Lin Yuncai · 17th century

Armor Garniture, Probably of King Henry VIII of England (reigned 1509–47)
Royal Workshops at Greenwich · dated 1527

Rattus norvegicus
Artist not stated in the record · Sep 1968

Nine Songs
Zhao Mengfu · 14th–15th century

A Fountain in a Park
Clement Jayet, French, 1731 – 1804 · 1763

Dog
Artist not stated in the record · late 19th–early 20th century

Ritual wine container (zun) with dragons
Artist not stated in the record · ca. late 11th-early 10th century BCE

Frame with Helmet and Dragons
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1740–68
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. 11 matched · 11 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.11 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 559389 matched · 40 examined · 22 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 03:56 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.