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. 20 shown for “Christoph Bockstorffer” — 49 records examined, 24 dropped by the rights gate.
Archives queried 2026-09-03 09:35 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Frieze with children
Christoph Bockstorffer · 1531
Christopher Columbus Langdell
Otto J. Schneider, 1875 - 1946 · 1906
Frieze with children
Christoph Bockstorffer · 1531
Kit Carson
Charles DeForest Fredricks, 11 Dec 1823 - 25 May 1894 · c. 1863
Lansquenets and ladies
Christoph Bockstorffer · 1531
Christopher Grant Champlin
Charles Balthazar Julien Févret de Saint-Mémin, 12 Mar 1770 - 23 Jun 1852 · 1800
The pardoning of a criminal
Christoph Bockstorffer · 1531
Christopher Columbus
Peter Maverick, 1780 - 1831 · 1816
Christopher Columbus
Jacques Reich, 10 Aug 1852 - 8 Jul 1923 · c. 1899-1920
David playing the harp before Saul
Christoph Bockstorffer · 1531
Study of a Bowing Man (Christopher Columbus)
Raimundo de Madrazo, Spanish, 1841–1920
Pride goeth before a fall
Christoph Bockstorffer · 1531
Study of a Bowing Man (Christopher Columbus)
Raimundo de Madrazo, Spanish, 1841–1920
Frieze with children
Christoph Bockstorffer · 1531
Two Studies of a Bowing Man (Christopher Columbus)
Raimundo de Madrazo, Spanish, 1841–1920
Emperors Charles V and Ferdinand I
Christoph Bockstorffer · ca. 1531
Christopher Columbus
Unidentified Artist · 1584
Rush C. Hawkins
Artist not stated in the record · 1861
Rush C. Hawkins
Artist not stated in the record · 1861
Rush C. Hawkins
Artist not stated in the record · 1861
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. 9 matched · 9 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.9 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 6911 matched · 40 examined · 24 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 2026-09-03 09:35 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.