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. 24 shown for “workshop of Francesco Patanazzi” — 64 records examined, 10 dropped by the rights gate.
Archives queried 2026-09-04 06:53 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Trilobed cistern (bacile trilobato)
workshop of Francesco Patanazzi · ca. 1600–1610

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

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

The Drawing Academy of Francesco Rosaspina
Artist not stated in the record · 1811

Inkstand with Apollo and the Muses
Patanazzi family · 1584

Portrait of a Young Man
Artist not stated in the record · ca. 1760–1770

Annunciation Triptych (Merode Altarpiece)
Robert Campin · ca. 1427–32

Portrait of a Woman
Artist not stated in the record · ca. 1760–1770

Francesco Bocchetta
Alessandro Vittoria (Alessandro Vittoria di Vigilio della Volpa) · ca. 1565–90

Design for a Ceiling (?) Painting with the Coat of Arms of Cardinal Francesco Maria de'Medici
Antonio Domenico Gabbiani, Italian, 1652 - 1726 · ca. 1690

Cassone with painted front panel depicting the Conquest of Trebizond
Apollonio di Giovanni di Tomaso · after ca. 1461

Saint Jerome
Artist not stated in the record · ca. 1760–1770

Saint John the Baptist Bearing Witness
Francesco Granacci · ca. 1506–7

The Almighty in the Clouds, with Two Boy Angels
Artist not stated in the record · ca. 1760–1770

Venice: The Dogana and Santa Maria della Salute
Francesco Guardi

Francesco, Hermit of Venice
Miner Kilbourne Kellogg, born Manlius Square, NY 1814-died Toledo, OH 1889 · 1844

Venice: The Rialto
Francesco Guardi

Portrait of a Lady
Artist not stated in the record · ca. 1760–1770

The Man of Sorrows with Two Angels
Francesco di Giorgio Martini · ca. 1470

Francesco Mazzolini
Artist not stated in the record · c. 1860-70

David and Goliath
Francesco Fanelli · 17th century cast

Francesco Mazzolini
Artist not stated in the record · c. 1860-70

Francesco I de' Medici, grand duke of Tuscany
Giambologna · modeled 1585–87, cast ca. 1611

Francesco Mazzolini
Artist not stated in the record · c. 1860-70
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. 273 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. 2859291 matched · 40 examined · 10 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 2026-09-04 06:53 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.