Two 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. 21 shown for “Pay claim for Wyandot Express Rider signed by William Henry Harrison” — 50 records examined, 24 dropped by the rights gate.
Archives queried 2026-08-31 23:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Oedipus and the Sphinx
Gustave Moreau · 1864

Pay claim for Wyandot Express Rider signed by William Henry Harrison
Artist not stated in the record · January 15, 1813

José Costa y Bonells (died l870), Called Pepito
Goya (Francisco de Goya y Lucientes) · ca. 1810

William Henry Harrison
Rembrandt Peale, 22 Feb 1778 - 3 Oct 1860 · c. 1813

The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38

Certificate of enlistment for Tilghman Detter
United States Army, American, founded 1775 · June 6, 1865

An Egyptian Peasant Woman and Her Child
Léon Bonnat · 1869–70

Military express rider receipt
Artist not stated in the record · August 26, 1794

Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares
Juan Bautista Martínez del Mazo · ca. 1636 or later
Grand Virginia Reel & Scamperdown at the White House Washington.
Clay, Edward Williams · 1836-02

Young Lady in 1866
Edouard Manet · 1866

Letter from President Benjamin Harrison
Artist not stated in the record · October 28, 1891

The Horse Fair
Rosa Bonheur · 1852–55

Letter to Oliver Wolcott from Ezekiel Williams
Artist not stated in the record · June 1, 1785

Manuel Osorio Manrique de Zuñiga (1784–1792)
Goya (Francisco de Goya y Lucientes) · 1787–88

Cover to Oliver Wolcott from Ezekiel Williams
Artist not stated in the record · June 1, 1785

1807, Friedland
Ernest Meissonier · ca. 1861–75

Replica of a Pony Express mochila
Artist not stated in the record · c. 1986

4c Pony Express Rider plate proof
Bureau of Engraving and Printing · June 10, 1960

Express from Richmond to Louisville posted to Boston cover
Artist not stated in the record · August 17, 1861

Log Cabin Politicians
G. W. Burgess and Company · 1841
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. 10 matched · 10 examined · 1 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.9 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1167008 matched · 40 examined · 23 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 2026-08-31 23:21 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.