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. 24 shown for “Master of the Mountain-like Clouds” — 64 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-01 16:57 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Death, Assumption, and Crowning of the Virgin
Master of the Mountain-like Clouds · ca. 1470–85
Cloud Sketch
Frederic Edwin Church, American, 1826–1900 · 1844–1850
The Virgin and Child in Majesty and the Adoration of the Magi
Master of Pedret · ca. 1100
Landscape near Catskill, New York
Frederic Edwin Church, American, 1826–1900 · October 1844 and May 1845
The Spiritual Master Padmasambhava
Artist not stated in the record · 14th century
Sunset over the Catskills, Hudson, New York
Frederic Edwin Church, American, 1826–1900 · 1860–80
Dish: The Destruction of the Hosts of Pharaoh
Master IC (probably Jean Court) · probably early 17th century
Crescent Moon
Frederic Edwin Church, American, 1826–1900 · 1860 - 1880
The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25
Clouds over Mountains
Frederic Edwin Church, American, 1826–1900 · June 1874
View of Haarlem and the Haarlemmer Meer
Jan van Goyen · 1646
Sky Sketch
Frederic Edwin Church, American, 1826–1900 · 1873–74
The Adoration of the Shepherds
Andrea Mantegna · shortly after 1450
Sunset over Mountains
Frederic Edwin Church, American, 1826–1900 · 1860–80
The Arrival in Bethlehem
Master of the Brussels Calling of Saint Matthew · ca. 1540–50
Sunset over the Catskills, Hudson, New York
Frederic Edwin Church, American, 1826–1900 · July 9, 1866
The Martyrdom of Saint Lawrence; (reverse) Giving Drink to the Thirsty
Master of the Acts of Mercy
Cloud Sketches
Frederic Edwin Church, American, 1826–1900 · 1875–1880
The Martyrdom of Saint Barbara
Lucas Cranach the Elder · ca. 1510
Sunset over the Hudson Valley, Part One
Frederic Edwin Church, American, 1826–1900 · January 1875
The Harvesters
Pieter Bruegel the Elder · 1565
Clouds at Sunset, Hudson, New York
Frederic Edwin Church, American, 1826–1900 · 1860–70
The Annunciation
Botticelli (Alessandro di Mariano Filipepi) · ca. 1490
Sunset over a Mountainous Landscape
Frederic Edwin Church, American, 1826–1900 · July or September 1860
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. 480 matched · 24 examined · 2 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. 1224 matched · 40 examined · 0 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 2026-09-01 16:57 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.