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. 15 shown for “Wang Duo” — 55 records examined, 39 dropped by the rights gate.
Archives queried 2026-08-28 18:22 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 written on Mount Qingliang
Wang Duo · dated 1641
Birds, plum blossoms, and bamboo in winter
Formerly attributed to Ma Lin (active early to mid-13th century) · 16th century
Letter
Wang Duo
Syncalathium kawaguchii (Kitam.) Y. Ling
Artist not stated in the record · 13 Aug 2009
Lofty Recluse in Autumn Mountains
Wang Duo · dated 1651
LE DUO CHAMPÊTRE
Antoine Watteau, French, 1684–1721 · 1723-1735
Landscape
Wang Duo · dated 1649
Letter by Yu Shinan (558-638)
Wang Duo · dated 1637
Calligraphy
Unidentified artist · 17th century or later, spurious date of 1649
Poem by Wang Wei
Dong Qichang · after 1632
Summer Mountains
Qu Ding · ca. 1050
Men Watching a Waterfall
Unidentified artist · 13th century
Treatise on Painting
Unidentified artist
River Hamlet
Unidentified artist · 12th–13th century
Poem Written in a Boat on the Wu River
Mi Fu · ca. 1095
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. 15 matched · 15 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. 5878 matched · 40 examined · 37 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.3 shown
These figures describe the pass run at 2026-08-28 18:22 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.