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. 11 shown for “Lodewijk van Schoor” — 11 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-01 21:43 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Autumn from a set of the Four Seasons
Lodewijk van Schoor · 1690–1720
Jacob Willemsz van Veen (1456–1535), the Artist's Father
Maarten van Heemskerck · 1532
Plate 3: Portrait of Ferdinand Cardinal Infante of Spain, in military armor; from Guillielmus Becanus's 'Serenissimi Principis Ferdinandi, Hispaniarum Infantis...'
Jacobus van Schoor · 1636
Plate 14: Ferdinand on a voyage with the Argonauts; from Guillielmus Becanus's 'Serenissimi Principis Ferdinandi, Hispaniarum Infantis...'
Jacobus van Schoor · 1636
Winter Landscape with Frozen River
Lodewijk Johannes Kleijn · 19th century
The Wagonner
Lodewijk de Vadder · 1620 (?)
Funeral Procession of William Lodewijk count of Nassau, July 13, 1620 in Leeuwarden
Pieter Feddes van Harlingen · ca. 1620
Design for an Ornamental Frame
Pieter Tanjé · 18th century
Portrait of a Man in a Chaperon
Netherlandish Painter
Study of a Tree
Roelandt Savery · ca. 1606–7
The Huis ten Bosch at The Hague and Its Formal Garden (View from the South)
Jan van der Heyden · ca. 1668–70
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. 11 matched · 11 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.11 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-09-01 21:43 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.