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. 14 shown for “Dance card for the University of Illinois Senior Ball” — 64 records examined, 47 dropped by the rights gate.
Archives queried 2026-08-28 10:52 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
Dance card for the University of Illinois Senior Ball
Artist not stated in the record · 1924
Terracotta column-krater (bowl for mixing wine and water)
Pig Painter · ca. 475–465 BCE
Ball-play Dance, Choctaw
George Catlin, born Wilkes-Barre, PA 1796-died Jersey City, NJ 1872 · 1834-1835
Vanitas Still Life
Jacques de Gheyn II · 1603
A Masked Ball in Bohemia
Andreas Altomonte · ca. 1748
Mademoiselle V. . . in the Costume of an Espada
Edouard Manet · 1862
Masquerade Ball
Raimundo de Madrazo y Garreta · 1909
The Departure of the Gondola
Giovanni Domenico Tiepolo · mid-1760s
After the Ball
Alfred Stevens · 1874
The Kangxi Emperor's Southern Inspection Tour, Scroll Three: Ji'nan to Mount Tai
Wang Hui · datable to 1698
Altar to the Sun Warrior
Mexico Nahua artist(s) · 1450-1521 CE
Hacha head
Classic Veracruz artist(s) · 600–900 CE
Portrait of a Young Man, Probably Robert Devereux (1566–1601), Second Earl of Essex
Nicholas Hilliard · 1588
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. 39 matched · 24 examined · 9 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. 3071426 matched · 40 examined · 38 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.2 shown
These figures describe the pass run at 2026-08-28 10:52 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.