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 “Jean Laurent Mosnier” — 64 records examined, 6 dropped by the rights gate.
Archives queried 2026-09-09 17:27 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Louis XVI (1754–1793), King of France
Jean Laurent Mosnier · 1790
Album of Frame and Cartouche Designs
Franz Hegi, Swiss, 1774 – 1850 · 18th–early 19th century
Antoine Laurent Lavoisier (1743–1794) and Marie Anne Lavoisier (Marie Anne Pierrette Paulze, 1758–1836)
Jacques Louis David · 1788
Prophete pleurant Jérusalem
Jean-Laurent Legeay, French, ca. 1710–86 · 1768, published 1770
Maria Luisa of Parma (1751–1819), Later Queen of Spain
Laurent Pécheux · 1765
La fuite en Egypte
Jean-Laurent Legeay, French, ca. 1710–86 · 1768, published 1770
The Silver Tureen
Jean Siméon Chardin · ca. 1728–30
Le Christ au puits de Samarie
Jean-Laurent Legeay, French, ca. 1710–86 · 1768, published 1770
Self Portrait
Philippe Laurent Roland · ca. 1785
Renealmia orinocensis Rusby
Artist not stated in the record · 19 Nov 1986
Allegory of Music
Laurent de La Hyre · 1649
Croton glabellus L.
Artist not stated in the record · 19 Nov 1986
Sleeping Boy
Philippe Laurent Roland · ca. 1774
Dieffenbachia seguine (Jacq.) Schott
Artist not stated in the record · 26 Feb 2011
Haystacks: Autumn
Jean-François Millet · ca. 1874
Philodendron ornatum Schott
Artist not stated in the record · 26 Feb 2011
Ducks Resting in Sunshine
Jean-Baptiste Oudry · 1753
Philodendron squamiferum Poepp.
Artist not stated in the record · 27 Feb 2011
The Golden Age
Jean-Baptiste Joseph Pater
Parodiolyra micrantha (Kunth) Davidse & Zuloaga
Artist not stated in the record · 27 Feb 2011
Dog Guarding Dead Game
Jean-Baptiste Oudry · 1753
Frontispiece, vasi invention, from "Collection de divers sujets de vases, tombeaux, ruines et fontaines, utile aux artistes..."
Jean-Laurent Legeay, French, ca. 1710–86 · 1768, published 1770
Ugolino and His Sons
Jean-Baptiste Carpeaux · 1865–67
Pyramide surmontée d'un vase monumental, from "Collection de divers sujets de vases, tombeaux, ruines et fontaines, utile aux artistes..."
Jean-Laurent Legeay, French, ca. 1710–86 · 1768, published 1770
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. 125 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. 18955 matched · 40 examined · 4 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 2026-09-09 17:27 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.