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 “An altar dedicated to Apollo” — 40 records examined, 3 dropped by the rights gate.
Archives queried 2026-09-02 12:19 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.The Metropolitan Museum of Art: HTTP 403 from collectionapi.metmuseum.org. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.
An altar dedicated to Apollo
Artist not stated in the record · 1815
Stage Design: Curtain, The Workshop of Apollo
Felice Giani, Italian, 1758–1823 · 1800–1805
Themistocles
Felice Giani, Italian, 1758–1823 · 1811
Ornament Design, Roman Altar Dedicated to Mars and Roman Standards
Michel Angelo Pergolesi, Italian, active ca. 1760–1801 · 1776
Olympus
Felice Giani, Italian, 1758–1823 · 1810
Ornament Design, Altar Dedicated to Mars between Roman Standards
Michel Angelo Pergolesi, Italian, active ca. 1760–1801 · 1776
Ornament Design, Altar Dedicated to Mars between Roman Standards
Michel Angelo Pergolesi, Italian, active ca. 1760–1801 · 1776
Design for an Altar
Gilles-Marie Oppenord, French, 1672–1742 · 1749-1761
![Altar Dedicated to a Virgin Martyr [St. Lucy?], by Unknown, Italian](/_next/image?url=https%3A%2F%2Fids.si.edu%2Fids%2Fdownload%3Fid%3DCHSDM-8CEE466C0AF22-000001.jpg&w=3840&q=75)
Altar Dedicated to a Virgin Martyr [St. Lucy?]
Unknown, Italian · early 19th century
The Genius of the Painter
Giovanni Giacomo de'Rossi, Italian, 1627 - 1691 · 1645–47
Altar to Apollo from the Villa di Cicerone, after a print by Piranesi
Donato Vaselli, Italian · late 18th century
The Genius of Castiglione
Giovanni Giacomo de'Rossi, Italian, 1627 - 1691 · 1648
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. HTTP 403 from collectionapi.metmuseum.org. No records from this archive are shown for this query.Unavailable - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 952442 matched · 40 examined · 3 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 2026-09-02 12:19 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.