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. 16 shown for “Atkins And Nightingale” — 64 records examined, 42 dropped by the rights gate.
Archives queried 2026-09-02 22:00 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Washington Family
Edward Bell · December 1, 1800
George Washington
Atkins And Nightingale · 1801
Caroline Nightingale
Unknown · 1875
T. Nightingale
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1801
Young Man and Woman in an Inn
Frans Hals · 1623
Pelecanoides urinator
Artist not stated in the record · 5 Nov 1951
Photographs of British Algae: Cyanotype Impressions
Anna Atkins · 1843–53
Spiraea aruncus (Tyrol)
Anna Atkins · 1851–54
Nesospiza wilkinsi wilkinsi
Artist not stated in the record · 5 Jan 1951
Delesseria hypoglassum
Anna Atkins · ca. 1853
Bangia laminaræ
Anna Atkins · ca. 1853
Lyngbya majuscula
Anna Atkins · ca. 1853
Porphyra vulgaris
Anna Atkins · ca. 1853
Lyngbya speciosa
Anna Atkins · ca. 1853
Schizonema parasiticum
Anna Atkins · ca. 1853
Enteromorpha compressa, var.
Anna Atkins · ca. 1853
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. 1073 matched · 24 examined · 7 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. 1464136 matched · 40 examined · 35 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.5 shown
These figures describe the pass run at 2026-09-02 22:00 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.