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 “Johann Friedrich Greuter” — 64 records examined, 20 dropped by the rights gate.
Archives queried 2026-09-01 19:05 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Allegory with Minerva at right, leading a young man towards Mount Parnassus, where the Muses sit
Johann Friedrich Greuter · 1620–47
Sample
Johann Friedrich Netto, German · 1798
The Forge of Vulcan
Johann Friedrich Greuter · 1620–47
Celebrated Authors
Jacques Llanta, 1807 - 1864 · 1833
Allegory relating to the Pamphili family
Johann Friedrich Greuter · ca. 1610–62
Jacobaea incana subsp. carniolica (Willd.) B. Nord. & Greuter
Artist not stated in the record · Jun 1864
The Forge of Vulcan
Johann Friedrich Greuter · 1620–47
Christian VIII
Artist not stated in the record · n.d.a.
Allegory relating to the Medici family
Johann Friedrich Greuter · ca. 1610–62
Monks in a Cloister
Artist not stated in the record · 1768-1839
The Death of St. Cecilia
Johann Friedrich Greuter · ca. 1640–60
Fraktur taufschein (Birth Certificate)
Johann Jacob Friedrich Krebs, German, active United States, ca. 1749 - 1815 · ca. 1804
Aedes Barberinae
Girolamo Teti · 1642
Allegorical Figural Group Depicting the "Peace of Basel"
Royal Porcelain Manufactory, Berlin, German, established 1763 · late 18th century
De Florum Cultura
Giovanni Battista Ferrari · 1633
The Tombs, Halls of Justice
Johann Gabriel Friedrich Poppel, German, born Hammer, Germany 1807-died Ammerland, Germany 1882 · 1850
Johann Joachim Winckelmann (1717–1768)
Anton Raphael Mengs · ca. 1777
Die Schlafenden Kinder
Johann Leonhard Appold, German, born Dennenlohe, Germany 1809-died Nuremberg, Germany, 1858 · n.d.
The Banishment of Hagar
Johann Friedrich Overbeck · 1839–41
Sampler
Artist not stated in the record · after 1795
Hesperides sive de Malorum Aureorum cultura et usu. Libri Quatuor
Giovanni Battista Ferrari · 1646
Jewelry Designs
Friedrich Jacob Morison, German, active 1693 – 1699 · ca. 1700
Augustus the Strong
Meissen Manufactory · ca. 1713
Jewelry Designs
Friedrich Jacob Morison, German, active 1693 – 1699 · ca. 1700
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. 278 matched · 24 examined · 1 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. 12573 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 2026-09-01 19:05 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.