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 “Carleton E. Watkins” — 64 records examined, 0 dropped by the rights gate.
Archives queried 2026-08-26 22:11 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
View on the Columbia, Cascades
Carleton E. Watkins · 1867
Primitive Mining, the Old Rocker
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · 1883
The Town on the Hill, New Almaden
Carleton E. Watkins · 1863
Carleton Watkins
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · 1883
Cape Horn near Celilo
Carleton E. Watkins · 1867
The Palace Hotel, from Montgomery Street, San Francisco
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1872
Cathedral Rock
Carleton E. Watkins · 1861
Watkins' Pacific Coast: In the Mariposa Grove, Mariposa County, California
Carleton E. Watkins, born Oneonta, NY 1829-died Imola, CA 1916 · 1868-1880
Cathedral Rock, River View
Carleton E. Watkins · 1861
Alexander W. Chase
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1875
El Capitan, Yosemite
Carleton E. Watkins · 1865–66
Galen Clark
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1865-66
Mount Shasta from the North
Carleton E. Watkins · 1870
Dr. William Healey Dall
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1870
Cascade, Nevada Fall on Left, View above Vernal Fall
Carleton E. Watkins · 1861
Jean Louis Rodolphe Agassiz
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1870
River View Down Valley, Cathedral Rock on Left
Carleton E. Watkins · 1861
Daniel Coit Gilman
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · 1875
Mt. Broderick in Distant Centre, Piroyac, Falling Chrystals, Vernal Fall
Carleton E. Watkins · 1861
Mirror View, Mount Watkins
Carleton E. Watkins, American, 1829 – 1916 · 1861–66
Pompomasos (Leaping Frogs), Three Brothers
Carleton E. Watkins · 1861
Washington Column, Yosemite
Carleton E. Watkins, American, 1829 – 1916 · 1861–66
Yosemite Falls, River View, 2637 Feet
Carleton E. Watkins · 1861
Up the Valley, Yosemite
Carleton E. Watkins, American, 1829 – 1916 · 1861–66
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. 272 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. 1115290 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 2026-08-26 22:11 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.