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. 17 shown for “Tu Long” — 58 records examined, 35 dropped by the rights gate.
Archives queried 2026-08-27 03:13 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Poem on a hermitage
Tu Long · late 16th century
Taenitis blechnoides (Willd.) Sw.
Artist not stated in the record · Jan 1906
Ugolino and His Sons
Jean-Baptiste Carpeaux · 1865–67
Boehmeria penduliflora Wedd. ex D.G. Long
Artist not stated in the record · Sep 1886
The Virgin and Child at a table with the young John the Baptist, after Reni
Anonymous, 17th century · ca. 1600–40
Schefflera heptaphylla (L.) Frodin
Artist not stated in the record · 16 Dec 2005
Night-Shining White
Han Gan · ca. 750
Aporosa octandra (Buch.-Ham. & D. Don) Vickery
Artist not stated in the record · 7 Mar 1920
Belt or girdle with a woven love poem
Artist not stated in the record · 16th century
Boehmeria nivea (L.) Gaudich.
Artist not stated in the record · 29 Oct 1888
The Promised Land
Franklin Simmons · 1873–74; carved 1874
Grooms and horses
Zhao Mengfu · dated 1296 and 1359
Les Secondes Oeuvres, et Subtiles Inventions De Lingerie du Seigneur Federic de Vinciolo Venitien, page 2 (recto)
Federico de Vinciolo · 1603
Historical and legendary figures
Hu Zhang · 1873
Landscapes after old masters
Pan Gongshou · 1783
Frontispiece and Colophons to the Album "Five Old Men of Suiyang"
Various Scholars
The Classic of Filial Piety
Li Gonglin · ca. 1085
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. 18 matched · 18 examined · 0 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. 45360 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 2026-08-27 03:13 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.