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. 19 shown for “Nicolas Visscher I” — 64 records examined, 45 dropped by the rights gate.
Archives queried 2026-08-29 13:00 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Portrait of Abraham Bloemaert
Nicolas Visscher I · 17th century
Novi Belgii, Novaeque Angliae nec non partis Virginiae Tabula...
Visscher, Nicolaes Jansz · ca 1666

Portrait of Nicolas Trigault in Chinese Costume
Peter Paul Rubens · 1617

The Rat Catcher
Artist not stated in the record · 1655

Blind Orion Searching for the Rising Sun
Nicolas Poussin · 1658

Portrait of Louis van Boisot
Artist not stated in the record · ca. 1760

The Abduction of the Sabine Women
Nicolas Poussin · probably 1633–34

The Dance In Front of An Inn
Artist not stated in the record · ca. 1670

Armorial Plate (tondino): The story of King Midas
Nicola da Urbino · ca. 1520–25
Protractor Signed by Delure
Delure, Jean-Baptiste-Nicolas · ca 1720

Sheep, from a set of 16 plates
Marcus de Bye · 1664

Le Roy d'Albion ou Nouvelle Angleterre
Nicolas de Larmessin I, 1632 - 1694 · c. 1670-80

Title page for "Diverses vaches et boeufs"
Marcus de Bye

Theobroma speciosum Willd. ex Spreng.
Artist not stated in the record · 9 Oct 1989

Portrait of Napoleon I
baron François Gérard · designed 1805, woven 1808–11

Portrait of Gellius de Bouma
Artist not stated in the record · 1629-1658

The Agony in the Garden
Nicolas Poussin · 1626–27
Dictyosphaeria cavernosa (Forssk.) Børgesen
Artist not stated in the record · 1936

Midas Washing at the Source of the Pactolus
Nicolas Poussin · ca. 1627
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. 645 matched · 24 examined · 14 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.10 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 176734 matched · 40 examined · 31 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.9 shown
These figures describe the pass run at 2026-08-29 13:00 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.