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 Francesco Nuvolone” — 64 records examined, 7 dropped by the rights gate.
Archives queried 2026-08-26 20:53 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
A Female Martyr Saint
Carlo Francesco Nuvolone · ca. 1650
Pier Extension at Geneva
Artist not stated in the record · 18th century
Still Life of Grapes and Peaches
Panfilo Nuvolone · ca. 1617
Design for a Fountain in a Pavilion
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Carlo Rimbotti (1518–1591)
Francesco Salviati (Francesco de' Rossi) · 1548
Designs for Two Fountains
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Madonna and Child
Carlo Crivelli · ca. 1480
Design for a Fountain in a Pavilion
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Madonna and Child Enthroned
Carlo Crivelli · 1472
Design for a Fountain in a Pavilion
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Federico Gonzaga (1500–1540)
Francesco Francia · 1510
Design for a Fountain in a Pavilion
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Charity
Carlo Cignani · ca. 1680
Design for a Fountain in a Pavilion
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Doña Marianna Stampa Parravicina (born 1612), Condesa di Segrate
Spanish Painter
Design for a Fountain in a Pavilion
Carlo Francesco Barabino, Italian, 1768 – 1835 · 1785–90
Paradise
Carlo Saraceni · ca. 1598
Woman with a Book
Artist not stated in the record · ca. 1760–1770
An Apostle
Carlo Crivelli · ca. 1471–73
Woman with a Turban
Artist not stated in the record · ca. 1760–1770
"Gould" Violin
Antonio Stradivari · 1693
The Drawing Academy of Francesco Rosaspina
Artist not stated in the record · 1811
The Dormition of the Virgin
Carlo Saraceni · ca. 1612
Piazza San Domenico in Bologna; Piazza San Francesco and Villa Aldini in Bologna; Study of Tomb of Glossatori
Felice Giani, Italian, 1758–1823 · 1811–14
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. 262 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. 27247 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 2026-08-26 20:53 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.