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. 19 shown for “Tong Yu” — 63 records examined, 34 dropped by the rights gate.
Archives queried 2026-08-26 22:40 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Drenched in Moonlight
Tong Yu · 18th century
Melia azedarach L.
Artist not stated in the record · Transcribed d/m/y: 21/7/20
Poem on Lanzhou
Xing Tong
Zanthoxylum armatum DC.
Artist not stated in the record · Transcribed d/m/y: 21/7/22
Bowl with Stylized Leaves
Artist not stated in the record · second half of the 16th century
Pterocarya stenoptera C. DC.
Artist not stated in the record · Transcribed d/m/y: 21/7/22
Rosy Sunset
Wen Tong · 16th century
Quercus aliena Blume
Artist not stated in the record · Transcribed d/m/y: 21/7/22
Cup with human figures
Artist not stated in the record · 16th century
Selliguea crenatopinnata (C.B. Clarke) S. L. Yu et al.
Artist not stated in the record · Sep 1910
Bodhisattva Avalokiteshvara in Water Moon Form (Shuiyue Guanyin)
Artist not stated in the record · dated 1385
Selliguea crenatopinnata (C.B. Clarke) S. L. Yu et al.
Artist not stated in the record · Sep 1913
Old Trees, Level Distance
Guo Xi · ca. 1080
Elaeagnus pungens Thunb.
Artist not stated in the record · 6 Jun 1890 to 8 Jun 1890
Landscapes after historical painters
Yun Xiang · datable to 1638 or 1650
Poem by Wang Wei
Dong Qichang · after 1632
Oil lamp
Artist not stated in the record · 18th century
Mutual Confidence (or Intelligence) Pavilion
Jian Guzhai · late 19th–early 20th century
Landscapes
Li Jian · 1793
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. 23 matched · 23 examined · 1 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. 4415 matched · 40 examined · 33 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.7 shown
These figures describe the pass run at 2026-08-26 22:40 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.