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 “Photographic postcard of soldiers in World War I at Verdun” — 64 records examined, 27 dropped by the rights gate.
Archives queried 2026-08-31 23:22 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Fragment of the marble stele (grave marker) of a hoplite (foot soldier)
Artist not stated in the record · ca. 525–515 BCE
Photographic postcard of soldiers in World War I at Verdun
Artist not stated in the record · July 1918
Picquigny
Frits Thaulow · 1899
Photographic postcard of WWI soldier with French and American flags
Unidentified · 1917-1918
The Forest in Winter at Sunset
Théodore Rousseau · ca. 1846–67
Verdun Offensive
Harding, George Matthews · 1918-10
Portrait of a Man, Possibly a Self-Portrait
Velázquez (Diego Rodríguez de Silva y Velázquez) · ca. 1635
Photographic postcard of WWI soldiers
Unidentified · 1917-1918
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Photographic postcard of WWI soldier
Unidentified · 1917-1918
Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares
Juan Bautista Martínez del Mazo · ca. 1636 or later
Photographic postcard of WWI soldier
Unidentified · 1918-1919
Joan of Arc
Jules Bastien-Lepage · 1879
Photographic postcard of a WWI soldier standing in front of tents
Artist not stated in the record · ca. 1918
The Jabach Family
Charles Le Brun · ca. 1660
Photographic postcard of WWI soldier with rifle
Unidentified · 1918-1930
Allegorical Figure Representing Geometry
Giovanni Battista Tiepolo · 1760
Photographic postcard of WWI soldier with quartermaster PFC patch
Unidentified · 1918-1936
The Belles Heures of Jean de France, duc de Berry
The Limbourg Brothers · 1405–1408/1409
Photographic postcard of WWI soldier
Unidentified · 1918-1930
The Harvesters
Pieter Bruegel the Elder · 1565
Photographic postcard of three WWI soldiers
Unidentified · ca. 1918
The Crucifixion
Pietro Lorenzetti · 1340s
Photographic postcard of two WWI soldiers
Unidentified · 1918-1919
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. 520 matched · 24 examined · 8 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. 7483678 matched · 40 examined · 19 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 23:22 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.