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 “Carlo Fontana” — 60 records examined, 7 dropped by the rights gate.
Archives queried 2026-08-31 02:18 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Design for the Façade of Santi Faustino e Giovita, Rome
Carlo Fontana · 1652–1725
Sepulchral Monument for Carlo Fontana
Giuseppe Barberi, Italian, 1746–1809 · after 1795
The Lottery in Piazza di Montecitorio
Giovanni Paolo Panini · 1743–1744
Plan and Elevation of the Ginetti Chapel at Sant'Andrea della Valle Basilica
Carlo Fontana, Italian, 1634 - 1714 · 1671
Fontana di Belvedere á Frascati (...), from "La Fontane di Roma nelle Piazze e Luoghi Publici (...)", part 2, 'Le fontane delle ville di Frascati' (plate 5)
Giovanni Battista Falda · 1691 or after
Plan and Elevation of the Ginetti Chapel and Altar in Sant'Andrea della Valle Basilica
Carlo Fontana, Italian, 1634 - 1714 · 1671
Flowers in a Grotesque Vase
Orsola Maddalena Caccia · ca. 1635
Plan and Elevation of the Cybo Chapel at the Basilica of Santa Maria del Popolo
Carlo Fontana, Italian, 1634 - 1714 · 1682–1687
Marble head of a Hellenistic ruler
Artist not stated in the record · 1st–2nd century CE
Project: A pulpit shown in profile
Artist not stated in the record · 1700–1750
Esther before Ahasuerus
Artemisia Gentileschi · 1620s
Design for Altar at Santo Spirito dei Napolitani (Holy Spirit of the Neapolitans), Rome, Italy
Artist not stated in the record · 1690–1702
The Adoration of the Magi
Nosadella (Giovanni Francesco Bezzi) · 1500–1571
Sepulchral Monument for Felice Fontana, Professor of Philosophy, Padua
Giuseppe Barberi, Italian, 1746–1809 · after 1795
Altra Vedvta in Prospettiva del Teatro et Giardino Contigvo di Mondragone in Frascati (...), from "La Fontane di Roma nelle Piazze e Luoghi Publici (...)", part 2, 'Le fontane delle ville di Frascati' (plate 18)
Giovanni Battista Falda · 1691 or after
Philonotis fontana var. alpicola Paris
Artist not stated in the record
Veduta di Tutta la Basilica Vaticana (...) from: Il Nuovo Teatro delle Fabbriche, et Edificii, in Prospettiva di Rome Moderna (...)
Giovanni Battista Falda · 1665–69
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Album of Drawings
Filippo Juvarra · 1678–1736
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Marble statue of a bearded Hercules
Artist not stated in the record · 68–98 CE
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Marble statue of Dionysos seated on a panther
François Duquesnoy · 1st–3rd century CE
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
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. 20 matched · 20 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. 28023 matched · 40 examined · 7 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 2026-08-31 02:18 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.