OpenTwo 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 “Proof impression number 3 of 4 for the 1970 label” — 64 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-01 00:55 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Chapel from Notre-Dame-du-Bourg at Langon
Artist not stated in the record · after 1126
Proof impression number 3 of 4 for the 1970 label
Artist not stated in the record · c. 1970
Relief with the Annunciation
Artist not stated in the record · ca. 1180–1200
10c Washington card plate proof block of fourteen
Artist not stated in the record · 1879-1894
Costume Armor in the Classical Style
Hallé · ca. 1788–90
6c Proprietary general issue revenue stamp plate proof
Artist not stated in the record · 1875-1883
Grisaille Panel
Artist not stated in the record · 1270–80
Rosenthal proof panel
American Bank Note Company · 1847-1894
Bust of a Bodhisattva
Artist not stated in the record · ca. 4th–5th century
6c William Christopher Handy plate proof
Bureau of Engraving and Printing · January 13, 1969
Armor Garniture of George Clifford (1558–1605), Third Earl of Cumberland
Jacob Halder · 1586
Temple of Heaven photographic essay
Artist not stated in the record · 1912
The Death of the Virgin (The Dormition)
Tilman Heysacker · late 15th century
$4 Queen Isabella and Christopher Columbus card plate proof
Artist not stated in the record · 1893
Armor of Henry II, King of France (reigned 1547–59)
Jean Cousin the Elder · ca. 1555
6c 150th Anniversary of Alabama Statehood plate proof
Bureau of Engraving and Printing · June 30, 1969
Terracotta column-krater (bowl for mixing wine and water)
Group of Boston 00.348 · ca. 360–350 BCE
$3 Columbus Describing His Third Voyage card plate proof
Artist not stated in the record · 1893
The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25
Dental impression Cup
Artist not stated in the record
Equestrian Portrait of Cornelis (1639–1680) and Michiel Pompe van Meerdervoort (1638–1653) with Their Tutor and Coachman
Aelbert Cuyp · ca. 1652–53
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. 5689 matched · 24 examined · 3 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. 7484733 matched · 40 examined · 30 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.10 shown
These figures describe the pass run at 2026-09-01 00:55 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.