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. 24 shown for “Johann Christian Schleip” — 64 records examined, 16 dropped by the rights gate.
Archives queried 2026-09-01 11:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Upright (Lyre) Piano with Pedalboard
Johann Christian Schleip · 1820–44
Johann Christian Wiegleb
Artist not stated in the record
Lyraflügel
Johann Christian Schleip · ca. 1820–44
Johann Christian Preis
Artist not stated in the record
Clavichord
Christian Kintzing · 1763
Christian VIII
Artist not stated in the record · n.d.a.
Johann Joachim Winckelmann (1717–1768)
Anton Raphael Mengs · ca. 1777
The Investigation of the Rainbow, design for plate 66 in the Physica Sacra, vol. 1, by Johann Jakob Scheuchzer
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Guitar
Christian Frederick Martin · ca. 1838
Study for The Temple in Jerusalem, Plate 424, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Box
Johann Christian Sick · ca. 1800
Study for Jacob Pours Oil upon the Stone at Bethel, Plate 87, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Box
Johann Christian Sick · ca. 1800
Study for The Creation of Light, Plate 3, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Copenhagen Harbor by Moonlight
Johan Christian Dahl · 1846
Study for The Fleece of Gideon, Plate 375, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Two Men before a Waterfall at Sunset
Johan Christian Dahl · 1823
Study for The Making of Glass, The Treasure Hid in the Sand, Plate 363, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Portrait of Johann Christian Brand
Adam von Bartsch · 1793
Study for Noah's Ark, Plate 40, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
Pair of Flintlock Pistols Made for Christian Ernst, Margrave of Brandenburg-Ansbach-Bayreuth-Kulmbach
Charles Froment · ca. 1686–90
Study for Abimelech Reproveth Sarah, Plate 81, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
The Banishment of Hagar
Johann Friedrich Overbeck · 1839–41
Study for the First Plan of Solomon's Temple, Plate 420, Physica Sacra
Johann Melchior Füssli, Swiss, 1677–1736 · before 1731
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. 17589 matched · 40 examined · 13 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 2026-09-01 11:12 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.