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. 13 shown for “Master Thomas der Schwertfeger (possibly Thomas Rucker)” — 64 records examined, 40 dropped by the rights gate.
Archives queried 2026-09-06 05:26 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Priming Flask Bearing the Monograms and Arms of the Prince-Elector August I of Saxony (reigned 1553–86) and Anna of Denmark (reigned 1553–85)
Master Thomas der Schwertfeger (possibly Thomas Rucker) · ca. 1575
Hypotrachyna sp.
Artist not stated in the record · Transcribed d/m/y: 21/5/84
Margaret of Austria
Jean Hey (called Master of Moulins) · ca. 1490
Portrait of an Old Man
Hugo van der Goes · ca. 1470–75
Saint Paul with a Donor; Christ Appearing to His Mother
Master of the Saint Ursula Legend · ca. 1485
Virgin and Child
Follower of Rogier van der Weyden (Master of the Saint Ursula Legend Group, Netherlandish, active late 15th century) · ca. 1480–90
The Flagellation
Master of the Berswordt Altar · ca. 1400
The Crucifixion
Master of the Berswordt Altar · ca. 1400
Head of a Donor
Albert van Ouwater · ca. 1465–70
The Annunciation
Hans Memling · ca. 1465–70
Obelisk clock with a Franklin movement
David Roentgen · ca. 1785–90
Cabasset
Artist not stated in the record · ca. 1580–90
The Crucifixion
Jan Provoost · ca. 1495
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. 184 matched · 24 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. 177833 matched · 40 examined · 39 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.1 shown
These figures describe the pass run at 2026-09-06 05:26 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.