Two 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 “Upper right corner of a marble sarcophagus with the Latin legend of Mars and Rhea Silvia” — 12 records examined, 0 dropped by the rights gate.
Archives queried 2026-08-27 13:57 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Upper right corner of a marble sarcophagus with the Latin legend of Mars and Rhea Silvia
Artist not stated in the record · late 2nd–early 3rd century CE

Portal from the Church of San Leonardo al Frigido
Biduinus · ca. 1175

Doorway from the Church of San Nicolò, San Gemini
Artist not stated in the record · carved 1000s, assembled 1100s or 1200s

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 Crucifixion; The Last Judgment
Jan van Eyck · ca. 1436–38

The Birth of the Virgin
Fra Carnevale (Bartolomeo di Giovanni Corradini) · 1467

The Death of Socrates
Jacques Louis David · 1787

Christ Bearing the Cross
North Netherlandish (Bruges) Painter

Madonna and Child with the Donor, Pietro de' Lardi, Presented by Saint Nicholas
Master G.Z. (possibly Michele dai Carri, Italian, Ferrara, active by 1405–died 1441 Ferrara) · ca. 1420–30

Madonna and Child Enthroned with Saint John the Evangelist, Saint Peter, Saint Agnes, Saint Catherine of Alexandria, Saint Lucy, an Unidentified Female Saint, Saint Paul, and Saint John the Baptist, with Eve and the Serpent; the Annunciation
Paolo di Giovanni Fei · 1390s

Hermaphrodite
Giovanni Francesco Susini · 1639

Design Fragment for the Left Side of the 'Fonte Gaia' in Siena
Jacopo della Quercia (Jacopo di Pietro d’Angelo di Guarnieri) · 1415–16
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. 12 matched · 12 examined · 0 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-27 13:57 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.