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. 13 shown for “Franz Alt, 1821–1906” — 25 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-03 11:30 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Room of Archduke Ludwig Victor in the Hofburg, Vienna
Franz Alt · 1861
A Salon in Vienna
Franz Alt, 1821–1906 · 1872
The Annunciation
Hans Memling · ca. 1465–70
The Adoration of the Magi
Joos van Wassenhove · 1472–74
Gothic Windows in the Ruins of the Monastery at Oybin
Carl Gustav Carus · ca. 1828
Lukas Spielhausen
Lucas Cranach the Elder · 1532
Saint Stephen of Hungary Presenting his Son, Saint Emeric, to the Virgin
Franz Xavier Karl Palko · 1740–67
Salvator Mundi
Albrecht Dürer · ca. 1505
Madonna and Child Enthroned with Two Angels
Fra Filippo Lippi · ca. 1440
The Jabach Family
Charles Le Brun · ca. 1660
Benedikt von Hertenstein (born about 1495, died 1522)
Hans Holbein the Younger · 1517
Tilla Durieux (Ottilie Godeffroy, 1880–1971)
Auguste Renoir · 1914
Moses Striking the Rock
Abraham Bloemaert · 1596
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. 61 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. 1 matched · 1 examined · 0 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.1 shown
These figures describe the pass run at 2026-09-03 11:30 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.