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. 14 shown for “Hesse de Linange as donor (one of a set of four)” — 64 records examined, 35 dropped by the rights gate.
Archives queried 2026-09-03 19:17 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Hesse de Linange as donor (one of a set of four)
Artist not stated in the record · 1529
Let-R-Balance combination ruler and postal scale
Artist not stated in the record · 1968-1971
Harlequin
Höchst Manufactory · ca. 1750–53
Pitney Bowes DM-3 postage meter
Artist not stated in the record · 1950s-1960s
autre Exemple propre à l’usage des Tableaux et Medaillons
Jean-François de Neufforge, Flemish, 1714 – 1791 · 1763
Set of jewelry
Artist not stated in the record · early 5th century BCE
Concert de Famille
Artist not stated in the record · 1881
Panel with Byzantine Ivory Carving of the Crucifixion
Artist not stated in the record · 10th century (ivory); late 11th century (setting)
Dress worn by Lupita Nyong'o as Patsey in the film 12 Years a Slave
Patricia Norris, American, 1931 - 2015 · 2013
Lupona (royal seat)
Ngongo ya Chintu, formerly known as the "Buli Master" · ca. 1840–1870
The Crucifixion with Saints and a Donor
Joos van Cleve · ca. 1520
The Cloisters Playing Cards
Artist not stated in the record · ca. 1475–80
Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32
The Adoration of the Magi
Giotto di Bondone · possibly ca. 1320
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. 866 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. 4397000 matched · 40 examined · 35 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.5 shown
These figures describe the pass run at 2026-09-03 19:17 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.