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 “Project for a Sepulcher Monument” — 64 records examined, 4 dropped by the rights gate.
Archives queried 2026-09-05 02:28 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Model for a Proposed Monument to Commemorate the Invention of the Balloon
Clodion (Claude Michel) · ca. 1784
Project for a Sepulcher Monument
Artist not stated in the record · 1820–1830
Study for the Equestrian Monument to Francesco Sforza
Antonio Pollaiuolo · early to mid 1480s
Project for a Sepulcher Monument
Artist not stated in the record · 1625–1650
Pope Innocent X
Alessandro Algardi · ca. 1690
Design of a Sepulcher Monument for a Prelate
Artist not stated in the record · 1780–1800
Project for a Public Monument
Alexandre Théodore Brongniart · n.d.
Elevation of a Sepulcher Monument for an Artist
Artist not stated in the record · early 19th century
The Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38
Design for a Sepulcher Monument for a Couple
Artist not stated in the record · ca. 1810
Marble grave stele of a little girl
Artist not stated in the record · ca. 450–440 BCE
Design of a Sepulcher Monument for a Prelate
Artist not stated in the record · 1790–1800
Portal from the Church of San Leonardo al Frigido
Biduinus · ca. 1175
Design for a Stage: A Cemetery
Pasquale Canna, Italian, active 18th century · late 18th century
Oedipus and the Sphinx
Gustave Moreau · 1864
Elevation of a Sepulcher Monument
Francesco Massimiliano Laboureur, Italian, 1767 - 1831 · 1800–1830
Project for the Monument de la Montagne, Orléans
Claude Mathieu Delagardette · ca. 1794
Elevation of a Sepulcher Monument
Artist not stated in the record · 1700–1750
The Creation of the World and the Expulsion from Paradise
Giovanni di Paolo (Giovanni di Paolo di Grazia) · 1445
Elevation of a Sepulcher Monument
Artist not stated in the record · ca. 1790
Project for a Monumental Fountain
Augustin Pajou · 1767
Elevation of a Sepulcher Monument
Matteo Torelli, Italian · 1822
Project for a Monumental Tomb
Anonymous, Italian, 16th century · 16th century
Project for a Holy Sepulcher
Artist not stated in the record · late 17th 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. 297 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. 2507467 matched · 40 examined · 1 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 2026-09-05 02:28 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.