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. 16 shown for “Andrea Appiani the Elder, Italian, 1754 - 1817” — 44 records examined, 2 dropped by the rights gate.
Archives queried 2026-09-06 14:28 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 Muses Thalia and Erato
Andrea Appiani · 1754–1817
The Head of a Despairing Young Woman
Andrea Appiani the Elder, Italian, 1754 - 1817 · late 18th century
Aurora Riding in Her Chariot
Andrea Appiani · 1754–1817
Portrait of Andrea Appiani the Elder (1754-1817)
Artist not stated in the record · ca. 1840
Study for the Portrait of General Desaix
Andrea Appiani · ca. 1800
Napoleon as General
Henry Brintnell Bounetheau, born Charleston, SC 1797-died Charleston, SC 1877 · 1847
The Muses Euterpe, Polyhymnia, Calliope, Clio, and Terpsichore (recto); Sketch of a Sleeping Child (verso)
Andrea Appiani · 1811
Album of Prints: Ornament Designs by Cuvilliés père
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1695–1768
L'HISTOIRE
Jacques de Lajoüe, French, 1687–1761 · 1737
Architecture seen from below, design for plate 55 in Andrea Pozzo's "Perspectiva pictorum et architectorum"
Andrea Pozzo, Italian, 1642–1709 · 1685–1700
Cartouche with Two Laurel Branches
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1738
Cartouche with Two Banners
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1738
Cartouche Topped by Open Crown
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1738
Title Page
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1738
Title Page
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1738
Cartouche with Armorial Trophy
François de Cuvilliés the Elder, Belgian, 1695 - 1768 · 1738
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. 4 matched · 4 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.4 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 1196227 matched · 40 examined · 2 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 2026-09-06 14:28 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.