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. 12 shown for “Johann Christian Ibert” — 24 records examined, 3 dropped by the rights gate.
Archives queried 2026-08-29 14:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
Clavichord
Christian Kintzing · 1763
Johann Joachim Winckelmann (1717–1768)
Anton Raphael Mengs · ca. 1777
Guitar
Christian Frederick Martin · ca. 1838
Box
Johann Christian Sick · ca. 1800
Box
Johann Christian Sick · ca. 1800
Copenhagen Harbor by Moonlight
Johan Christian Dahl · 1846
Two Men before a Waterfall at Sunset
Johan Christian Dahl · 1823
Portrait of Johann Christian Brand
Adam von Bartsch · 1793
Pair of Flintlock Pistols Made for Christian Ernst, Margrave of Brandenburg-Ansbach-Bayreuth-Kulmbach
Charles Froment · ca. 1686–90
The Banishment of Hagar
Johann Friedrich Overbeck · 1839–41
Portrait of the Artist Johann Christian Reinhart
José de Madrazo · 1811
Monument to Johann Christian Bach
Francesco Bartolozzi · March 10, 1782
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. 216 matched · 24 examined · 3 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-29 14:21 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.