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 “Plate from Opus de ludicro picturae genere (A Work About the Playful Style of Painting)” — 64 records examined, 35 dropped by the rights gate.
Archives queried 2026-09-02 13:32 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Marble-top table
Theophil Hansen · ca. 1855–65
Plate from Opus de ludicro picturae genere (A Work About the Playful Style of Painting)
Artist not stated in the record · ca. 1562
Vase (vase gothique Fragonard) (one of a pair)
Alexandre Evariste Fragonard · manufactured 1832, decorated 1844
Plate from Opus de ludicro picturae genere (A Work About the Playful Style of Painting)
Artist not stated in the record · ca. 1562
Medici vase with a scene of the park at Saint-Cloud (one of a pair)
Sèvres Manufactory · 1811
Design for a Painted Porcelain Plate, Le Jasmin (Jasmine) from the Service de la Culture des Fleurs (Cultivation of Flowers Service)
Jean Charles Develly, French, 1783 - 1849 · 1821–24
Medici vase with a scene of the château at Saint-Cloud (one of a pair)
Sèvres Manufactory · 1811
Edwin Forrest in the Role of Metamora
Frederick Styles Agate, 1807 - 1 May 1844 · c. 1832
The Visit
Pieter de Hooch · ca. 1657
Standing Cup with Cover, from "Novum opus cratero graphicum..."
Artist not stated in the record · 1551
Portrait of a Woman with a Man at a Casement
Fra Filippo Lippi · ca. 1440
Allegory of the Catholic Faith
Johannes Vermeer · ca. 1670–72
Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares
Juan Bautista Martínez del Mazo · ca. 1636 or later
Circus Sideshow (Parade de cirque)
Georges Seurat · 1887–88
Two Children Teasing a Cat
Annibale Carracci
The Forest in Winter at Sunset
Théodore Rousseau · ca. 1846–67
The Rehearsal of the Ballet Onstage
Edgar Degas · ca. 1874
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. 50 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. 4313836 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 2026-09-02 13:32 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.