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 “Painter of Orvieto 191A” — 64 records examined, 40 dropped by the rights gate.
Archives queried 2026-09-07 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.
Terracotta fragment of a kylix (drinking cup)
Painter of Orvieto 191A · 5th century BCE
Terracotta fragments of a kylix (drinking cup)
Painter of Brussels R 330 · 460–450 BCE
Terracotta amphora (jar)
Orvieto Painter · ca. 540 BCE
Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32
Musk Cat
Uto Gyoshi · mid- to late 16th century
Terracotta pelike (jar)
Chicago Painter · mid-5th century BCE
Terracotta oinochoe: chous (jug)
Amasis Painter · ca. 560 BCE
The Crucifixion
Master of the Codex of Saint George · ca. 1330–35
An Ecclesiastic (Pope?) Blessing a Book before the Sacred College
Cesare Nebbia · 1580–90
The Adoration of the Magi
Quinten Massys · 1526
Bronze mirror
Artist not stated in the record · ca. 350 BCE
The Belles Heures of Jean de France, duc de Berry
The Limbourg Brothers · 1405–1408/1409
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. 356 matched · 24 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. 2862637 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 2026-09-07 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.