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 “Anton Joseph von Prenner” — 64 records examined, 15 dropped by the rights gate.
Archives queried 2026-08-28 13:04 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Tower of Babel
Anton Joseph von Prenner
Palisota ebo Cheek
Artist not stated in the record · 19 Feb 2006
Flora with Putti in a Garden
Anton Joseph von Prenner
Blarina brevicauda talpoides
Artist not stated in the record
The Young Bacchus, holding a flute
Anton Joseph von Prenner · 1728
Aneilema beniniense (P. Beauv.) Kunth
Artist not stated in the record · 15 Feb 2006
A man, possibly a scholar or philosopher, plate 64 from a portfolio of reproductions of the Imperial Gallery of Paintings in Vienna
Anton Joseph von Prenner · 1728
Coffea mauritiana Lam.
Artist not stated in the record · 15 Feb 2006
Saint Pepin I and his daughter, Saint Begga
Anton Joseph von Prenner · 1732
Salix incana Michx. x S. viminalis L.
Artist not stated in the record
Portrait of Cardinal Infante Ferdinand of Austria
Anton Joseph von Prenner · 1728
The Study of Grand Duchess Cecilia von Oldenberg
Ernst Christian Anton von Lautzow · 1839
Portrait of Cardinal Infante Ferdinand of Austria
Anton Joseph von Prenner · 1728
Staphylococcus flavus Hansg.
Artist not stated in the record · 1891
Aeneas fleeing Troy, with a group of six figures leaving the city at left, Aeneas carrying his father Anchises on his back, followed by his wife Creusa and his son Ascanius, two servants at far left
Anton Joseph von Prenner · 1728
Bacillus fenestralis
Artist not stated in the record · Dec 1883
A mathematician seated at a table, working on mathematical equations, plate 34 from a portfolio of prints of the Imperial Gallery of Paintings in Vienna
Anton Joseph von Prenner · 1728
Ascococcus billrothii var. thermophilus Hansgirg
Artist not stated in the record · Nov 1887
A saint seated at a table with his right hand resting on a skull, plate 33 from a portfolio of reproductions of the Imperial Gallery of Paintings in Vienna
Anton Joseph von Prenner · 1728
Design for a Candlestick
Joseph Anton Seethaler II, German, 1799–1868 · 1827–1835
The Feast of Venus, with groups of satyrs, nymphs, and putti dancing around a statue of Venus
Anton Joseph von Prenner · 1732
Design for a Candelabrum
Joseph Anton Seethaler II, German, 1799–1868 · 1825-1835
Heroic Landscape with Rainbow
Joseph Anton Koch · 1824
Thlaspi arvense L.
Artist not stated in the record · 14 Apr 2002
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. 74 matched · 24 examined · 2 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. 119400 matched · 40 examined · 13 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 2026-08-28 13:04 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.