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. 23 shown for “Peter Robertson” — 64 records examined, 31 dropped by the rights gate.
Archives queried 2026-09-01 19:27 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Powder Horn
Peter Robertson · 1767
Portulaca fascicularis Peter
Artist not stated in the record · Transcribed d/m/y: 13/3/90
James Smith Livingston
Archibald Robertson · ca. 1795
Megathyrsus infestus (Peters) B.K. Simon & S.W.L. Jacobs
Artist not stated in the record · Transcribed d/m/y: 25/4/90
Waterfall at Terni
Camille Corot · 1826
Megathyrsus infestus (Peters) B.K. Simon & S.W.L. Jacobs
Artist not stated in the record · 11 Mar 1990
First Infant School in Green Street, New York
Anthony Imbert · 1828
Dendrosenecio johnstonii (Oliv.) B. Nord.
Artist not stated in the record · Transcribed d/m/y: 19/7/31
The Forest in Winter at Sunset
Théodore Rousseau · ca. 1846–67
Portrait of Peter Monteath
Erastus Dow Palmer, born Pompey, NY 1817-died Albany, NY 1904 · 1861-1862
Sports on a Frozen River
Aert van der Neer · ca. 1660
American Farm Yard (Winter)
Kelly, Thomas · ca 1865
Madonna and Child
Giovanni Bellini · late 1480s
A Home in the Country (Summer)
Spence, R. S. · ca 1866
The Fairy Tree at Colinton
Hill and Adamson · 1846
American Hunting Scene Wild Duck Shooting
Kelly, Thomas · ca 1865
The Ballet from "Robert le Diable"
Edgar Degas · 1871
Thomas Bolling Robertson
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1808
Relief with enthroned ruler
Chakalte' · 770 CE
Thomas Bolling Robertson
William Bache, 22 Dec 1771 - 9 Jul 1845 · c. 1803-04
The Lamentation
Domenichino (Domenico Zampieri) · 1603
Beverly Holcombe Robertson
Unidentified Artist · May 23, 1863
The Meditation on the Passion
Vittore Carpaccio · ca. 1490
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. 47 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. 35073 matched · 40 examined · 29 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.11 shown
These figures describe the pass run at 2026-09-01 19:27 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.