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. 17 shown for “Bronze portrait head of the emperor Gaius (Caligula)” — 64 records examined, 35 dropped by the rights gate.
Archives queried 2026-08-27 03:45 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Bronze portrait head of the emperor Gaius (Caligula)
Artist not stated in the record · ca. 37–41 CE
The Roman Emperor Caligula (37-41)
Artist not stated in the record · 1750-1760
Marble portrait bust of the emperor Gaius, known as Caligula
Artist not stated in the record · 37–41 CE
Portrait of Emperor Charles V (1500-1558)
Artist not stated in the record · ca. 1580-1600
Bronze portrait bust of the emperor Gaius (Caligula)
Artist not stated in the record · ca. 37–41 CE
Caius Marius on the Ruins of Carthage
Stephen Alonzo Schoff, born Danville, VT 1818-died Norfolk, CT 1904
Bronze statue of the emperor Trebonianus Gallus
Artist not stated in the record · 251–253 CE
Pendant
André Galle, France, 1761 - 1844 · ca. 1814
Bronze statue of an aristocratic boy
Artist not stated in the record · 27 BCE–14 CE
William II, Emperor, of Germany
Walter Schott, German, born Ilsenburg, Germany 1861-died Berlin, Germany 1938 · n.d.
Marble portrait of the emperor Augustus
Artist not stated in the record · ca. 14–37 CE
Marble portrait head of the Emperor Constantine I
Artist not stated in the record · ca. 325–370 CE
Bronze sestertius of Gaius (Caligula)
Artist not stated in the record · 37–38 CE
Onyx cameo of the emperor Gaius (Caligula)
Artist not stated in the record · ca. 37–43 CE
Jewish Woman of Algiers
Charles-Henri-Joseph Cordier · 1862
Marble portrait of the emperor Caracalla
Artist not stated in the record · 212–217 CE
Colossal marble head of the emperor Augustus
Artist not stated in the record · ca. 14–30 CE
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. 55 matched · 24 examined · 0 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. 3008320 matched · 40 examined · 35 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.5 shown
These figures describe the pass run at 2026-08-27 03:45 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.