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. 15 shown for “Jacob Cats” — 64 records examined, 40 dropped by the rights gate.
Archives queried 2026-09-02 20:17 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Winter Landscape with Peasants Gathering and Chopping Wood
Jacob Cats · 1784
Ringling Bros. and Barnum & Bailey Combined Shows: The Greatest Wild Animal Display in History
Unidentified · 1924
A Stormy Scene with Figures Unloading Boats Near a House on the Water's Edge
Jacob Cats · 1785
Scroll- and Bandwork Escutcheon
Artist not stated in the record · 1566
The Holy Family with Shepherds
Jacob Jordaens · 1616
Grumman G-164 Ag-Cat
Schweizer Aircraft Corporation · 1957-2008
Wheat Fields
Jacob van Ruisdael · ca. 1670
Oval table
David Roentgen · ca. 1774–80
Jacob Willemsz van Veen (1456–1535), the Artist's Father
Maarten van Heemskerck · 1532
Isaac Blessing Jacob
Gerbrand van den Eeckhout · 1642
Guitar
Giacomo (Jacob) Ertel · late 17th century
Landscape with a Village in the Distance
Jacob van Ruisdael · 1646
Oboe in C
Jacob Denner · before 1735
The Denial of Saint Peter
Caravaggio (Michelangelo Merisi) · 1610
A Fool with an Owl and a Woman at a Window
Pieter de Jode II · 17th century
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. 2049 matched · 24 examined · 3 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. 23665 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 2026-09-02 20:17 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.