Two 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. 15 shown for “Constant Troyon” — 56 records examined, 37 dropped by the rights gate.
Archives queried 2026-08-29 03:30 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Going to Market
Constant Troyon · 1860

Homeward
Leggo Brothers and Company, n.d. · n.d.

The Workshop of a Wooden Shoe Maker
Constant Troyon · ca. 1838

Felix Constant de Boisgerard
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1809

Road in the Woods
Constant Troyon · mid-1840s

Streptocarpus 'Constant Nymph'
Artist not stated in the record · 29 Apr 1968

Landscape
Constant Troyon · 1825–65

A Standing Peasant Boy in Hat and Wooden Shoes
Constant Troyon · 1825–65

Cows in a Landscape
Constant Troyon · mid-19th century

A Farmhouse with a Thatched Roof and Trees Beside a River
Constant Troyon · 1825–65
![[Constant Troyon], by Etienne Carjat](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fph%2Fweb-large%2FDP-13055-001.jpg&w=3840&q=75)
[Constant Troyon]
Etienne Carjat · 1860s

Portrait of Troyon
Anonymous, French, 19th century · 19th century

Salon de 1850-51; Paysage et Animaux, par Troyon
Charles-François Daubigny · 1850–51

The Edge of the Woods at Monts-Girard, Fontainebleau Forest
Théodore Rousseau · 1852–54

Cows Crossing a Ford
Jules Dupré · 1836
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. 16 matched · 16 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. 960 matched · 40 examined · 37 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.3 shown
These figures describe the pass run at 2026-08-29 03:30 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.