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. 18 shown for “Nicolaas Struyk” — 46 records examined, 4 dropped by the rights gate.
Archives queried 2026-09-05 08:40 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
A Caterpillar and Two Moths on a Branch and Two Butterflies
Nicolaas Struyk · early 18th–mid 18th century
Justicia carthaginensis Jacq.
Artist not stated in the record · Dec 1959
A Dragonfly
Nicolaas Struyk · early 18th–mid 18th century
Edward Anthony
Nicolaas Henneman, 1813 - 1898? · 1847
A Butterfly
Nicolaas Struyk · early 18th–mid 18th century
Souvenir des Cressonnières à Veules
Artist not stated in the record · ca. 1873
A Moth
Nicolaas Struyk · early 18th–mid 18th century
Pellionia daveauana N.E. Br.
Artist not stated in the record · Jun 1963
A Butterfly
Nicolaas Struyk · early 18th–mid 18th century
Crateva tapia L.
Artist not stated in the record · Jul 1970
A Moth
Nicolaas Struyk · early 18th–mid 18th century
Pulchranthus adenostachyus (Lindau) V.M. Baum et al.
Artist not stated in the record · 19 Aug 1990
Conyza sp.
Artist not stated in the record · 21 Nov 1947
La Retour de la Pêche
Artist not stated in the record · ca. 1880
Room in Artist's House
Artist not stated in the record · ca. 1890
Vachellia tortuosa (L.) Seigler & Ebinger
Artist not stated in the record · 21 Nov 1947
Hippomane mancinella L.
Artist not stated in the record · 15 May 1951
Sida salviifolia C. Presl
Artist not stated in the record · 14 Aug 1952
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. 6 matched · 6 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.6 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 422 matched · 40 examined · 4 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 2026-09-05 08:40 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.