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 “Célestin Nanteuil” — 64 records examined, 10 dropped by the rights gate.
Archives queried 2026-08-28 13:22 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Flight from Egypt, from "L'Artiste"
Célestin Nanteuil · 1833
Mother and Child on Balcony
Artist not stated in the record
Seated Man with Quill in his Right Hand at Desk Littered with Books
Célestin Nanteuil · 1834
Cottage Interior
Artist not stated in the record · 1849
Title Page for the Revue de Peintres
Célestin Nanteuil · 1835
In the Woods (La Causerie)
Artist not stated in the record · ca. 1845–1850
Notre-Dame de Paris
Célestin Nanteuil · 1832
The Alchemist
Artist not stated in the record · ca. 1850
Fontainebleau: Oak Trees at Bas-Bréau
Camille Corot · 1832 or 1833
Portrait of Francois de Nesmond
Robert Nanteuil, French, 1623 – 1678 · 1667
The Last Day of a Condemned Man
Célestin Nanteuil · 1833
Portrait of Marc de Wilson
Artist not stated in the record
Twilight
Célestin Nanteuil · ca. 1850
Eriophorum latifolium Hoppe
Artist not stated in the record · 6 Jun 1877
Clorinde
Célestin Nanteuil · 1847
Portrait of Louis Hesselin
Robert Nanteuil, French, 1623 – 1678 · 1660
First Part, the Departure
Célestin Nanteuil · ca. 1830–60
Portrait of Cardinal Mazarin
Artist not stated in the record · 1655
Tears and Smiles
Célestin Nanteuil · ca. 1830–60
Portrait of Jean Chapelain
Artist not stated in the record · 1655
Portrait of Victor Hugo
Célestin Nanteuil · 1833
Moses
Robert Nanteuil, French, 1623 – 1678 · 1699
Third Part, The Revolt
Célestin Nanteuil · ca. 1830–65
Portrait of the Marquis de Longveil
Artist not stated in the record · 1661
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. 40 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. 201 matched · 40 examined · 10 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 2026-08-28 13:22 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.