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 “Prockia crucis P. Browne ex L.” — 64 records examined, 42 dropped by the rights gate.
Archives queried 2026-09-04 21:21 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
ex "Kurtz" Violin
Andrea Amati · ca. 1560
Music-Making Angels
Albrecht Dürer · 1521
The Raising of Lazarus
Jacques Bellange · ca. 1606–8
The Head of the Virgin in Three-Quarter View Facing Right
Leonardo da Vinci · 1510–13
Percussion Target Rifle
Julius Grudchos · ca. 1855–60
The Toilet of Bathsheba
Rembrandt (Rembrandt van Rijn) · 1643
Underriver–The Golden Valley
John Linnell · ca. 1833
The Baptism of Christ
Sebastiano Ricci · ca. 1713–14
Quentin Durward and the disguised Louis XI (recto); Study of male figure (verso)
Richard Parkes Bonington · 1825–26
Rocky Landscape
Charles-François Daubigny · ca. 1845–50
Shield Boss and Grip
Artist not stated in the record · late 4th century
Buckle Shank
Artist not stated in the record · first half 6th century
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. 276 matched · 24 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. 2033629 matched · 40 examined · 40 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.0 shown
These figures describe the pass run at 2026-09-04 21:21 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.