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. 20 shown for “General Henry Knox” — 64 records examined, 33 dropped by the rights gate.
Archives queried 2026-09-08 10:53 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
General Henry Knox
Charles Willson Peale · 1778
Henry Knox
Charles Peale Polk, 17 Mar 1767 - 6 May 1822 · after 1783
Letter from Henry Knox (1750–1806), Secretary of War, to Colonel Marinus Willett (1740–1830)
General Henry Knox · dated May 27, 1786
Presidents of the United States
Nathaniel Currier, 27 Mar 1813 - 20 Nov 1888 · 1844
Torso of a High General
Artist not stated in the record · 4th century BCE
People's Choice Twelfth President
Nathaniel Currier, 27 Mar 1813 - 20 Nov 1888 · 1848
Triumph of Patriotism– Washington Entering New York, 25 November 1783
Alexander Hay Ritchie · 1858
Lewis Cass
Nathaniel Currier, 27 Mar 1813 - 20 Nov 1888 · 1848
The Triumph of Henry IV
Peter Paul Rubens · ca. 1630
The President is Dead
Henry Atwell Thomas, 1834 - 12 Nov 1904 · 1881
Gardner's Photographic Sketchbook of the War, Volume 1
Alexander Gardner · 1863
Taxidea taxus jacksoni
Artist not stated in the record · 8 Jun 1946
Shield of Henry II of France (reigned 1547–59)
Artist not stated in the record · ca. 1555
Dendrosenecio adnivalis (Stapf) E.B. Knox
Artist not stated in the record · Jun 1929
General Washington
Valentine Green · January 15, 1781
Dendrosenecio adnivalis (Stapf) E.B. Knox
Artist not stated in the record · Jul 1929
General Washington
Benoit Louis Prevost · 1781
General Washington's Resignation
Alexander Lawson · 1799
General Étienne-Maurice Gérard (1773–1852)
Jacques Louis David · 1816
General Letellier on His Deathbed
Théodore Géricault · ca. 1818–20
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. 716 matched · 24 examined · 1 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. 176459 matched · 40 examined · 32 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.8 shown
These figures describe the pass run at 2026-09-08 10:53 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.