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. 22 shown for “Prince Lu” — 64 records examined, 22 dropped by the rights gate.
Archives queried 2026-08-27 00:26 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Guqin (古琴 )
Prince Lu · 1634
Baijiania yunnanensis (A.M. Lu & Zhi Y. Zhang) A.M. Lu & J.Q. Li
Artist not stated in the record · 3 Aug 1929
Qin
Prince Lu · 1634
Bambusa dolichomerithalla Hayata
Artist not stated in the record · 18 Jul 1963
Studying a painting
Zhang Lu · 16th century
Bambusa pachinensis Hayata
Artist not stated in the record · 18 Jul 1963
Night-Shining White
Han Gan · ca. 750
Pseudocayratia oliogocarpa (H. Lév. & Vaniot) J. Wen & L.M. Lu
Artist not stated in the record · 10 Aug 1932
The Death of Lazarus, plate 1 from "The Parable of Dives and Lazarus" (La Parabole du mauvais Riche et de Lazare)
Abraham Bosse · 1620–76
Bambusa spinosa Roxb.
Artist not stated in the record · 18 Jul 1963
Finches and bamboo
Emperor Huizong · early 12th century
Pseudosasa japonica (Siebold & Zucc. ex Steud.) Makino ex Nakai
Artist not stated in the record · 18 Jul 1963
Standing Figure with Jeweled Headdress
Artist not stated in the record · 12th–early 13th century
Bambusa dolichoclada 'Sun-Moon-Lake'
Artist not stated in the record · 18 Jul 1963
Biographies of Lian Po and Lin Xiangru
Huang Tingjian · ca. 1095
Prunus oblonga (T.T. Yu & L.T. Lu) ined.
Artist not stated in the record · 18 Nov 2004
Grain serving vessel (gui)
Artist not stated in the record · early 9th century BCE
Phyllostachys nigra (Lodd. ex Lindl.) Munro var. nigra
Artist not stated in the record · 18 Jul 1963
Album of painting and calligraphy for Maoshu
Various artists · 1666–80
Microscelis amaurotis harterti
Artist not stated in the record · 25 Apr 1988
Spinario
Antonello Gagini · early 16th century
Standing Figure with Feathered Headdress
Artist not stated in the record · 12th–early 13th 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. 30 matched · 24 examined · 2 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. 36318 matched · 40 examined · 20 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 2026-08-27 00:26 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.