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 “Ferdinand Tietz” — 51 records examined, 34 dropped by the rights gate.
Archives queried 2026-09-05 08:08 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Dancer and flute player
Ferdinand Tietz · mid-18th century
Ferdinand Rudolph Hassler
Charles Fenderich, 1805 - 1887 · 1841
Dead stag and a hound
Ferdinand Tietz · mid-18th century
Ferdinand Hayden
Frederick Gutekunst, 25 Sep 1831 - 27 Apr 1917 · c. 1880
Commode
Artist not stated in the record · ca. 1765
Ferdinand Vandiveer Hayden
E. R. Morgan · c. 1859
Armchair (fauteuil à la reine)
Artist not stated in the record · ca. 1750–60
Ferdinand Vandiveer Hayden
Unidentified Artist · c. 1875
Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504
Ferdinand W. Peck
Carlo de Fornaro, 1871 - 1949 · c. 1898
Card table
Artist not stated in the record · ca. 1745–50
Ferdinand Rudolph Hassler
Auguste Edouart, 1788 - 1861 · 1841
Mars and Venus United by Love
Paolo Veronese (Paolo Caliari) · 1570s
Salvator Mundi
Albrecht Dürer · ca. 1505
Rodolfo Gonzaga (1451–1495)
Andrea Mantegna
Portrait of a Man, Said to be Christopher Columbus (born about 1446, died 1506)
Sebastiano del Piombo (Sebastiano Luciani) · 1519
Ulrich Fugger the Younger (1490–1525)
Hans Maler · 1525
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. 11 matched · 11 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.11 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 4416 matched · 40 examined · 34 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.6 shown
These figures describe the pass run at 2026-09-05 08:08 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.