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 “House of Dufour” — 64 records examined, 47 dropped by the rights gate.
Archives queried 2026-09-05 20:58 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Promenade in a Barge
House of Dufour · ca. 1820
!["Vues d'Italie" [Bay of Naples], by Dufour et Leroy](/_next/image?url=https%3A%2F%2Fids.si.edu%2Fids%2Fdownload%3Fid%3DCHSDM-144351_01-000001.jpg&w=3840&q=75)
"Vues d'Italie" [Bay of Naples]
Dufour et Leroy · 1815–20
Young Girls Dancing before a Grotto
House of Dufour · ca. 1820
!["Vues d'Italie" [Bay of Naples], by Dufour et Leroy](/_next/image?url=https%3A%2F%2Fids.si.edu%2Fids%2Fdownload%3Fid%3DCHSDM-144341_01-000001.jpg&w=3840&q=75)
"Vues d'Italie" [Bay of Naples]
Dufour et Leroy · 1815–20
Quilt, Album pattern
Brown and Turner families · begun 1846
House
Anonymous, British, 19th century · 19th century
Armorial dish: Supper at the House of Simon the Pharisee
Maestro Giorgio Andreoli · 1528
Wentworth House
Artist not stated in the record · 1695–1700
Chapter House from Notre-Dame-de-Pontaut
Artist not stated in the record · 12th century
Model of a House
Artist not stated in the record · ca. 1750–1700 B.C.
House post figure
Lake Sentani artist · 19th century
Trees and Houses Near the Jas de Bouffan
Paul Cézanne · 1885–86
Amo (house post figure)
Māori artist · ca. 1800
The House of Bijapur
Kamal Muhammad · ca. 1680
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. 20408 matched · 24 examined · 9 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. 2872022 matched · 40 examined · 38 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.2 shown
These figures describe the pass run at 2026-09-05 20:58 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.