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 “Niccolò di Giacomo da Bologna” — 64 records examined, 9 dropped by the rights gate.
Archives queried 2026-09-03 13:39 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Manuscript Illumination with the Martyrdom of Saint Stephen in an Initial E, from a Gradual
Niccolò di Giacomo da Bologna · ca. 1394–1402

Design for a Ceiling with Balustrade
Artist not stated in the record · ca. 1685

The Last Supper
Fra Damiano da Bergamo (Damiano di Antoniolo de Zambelli) · 1548

View of Florence with the Cathedral, S. Croce, Palazzo Vecchio, Plate 4 from "Scelta di XXIV Vedute delle principali contrade, piazze, chiese, e palazzi della Città di Firenze"
Artist not stated in the record · ca. 1743

Chapel from Le Château de la Bastie d'Urfé
Fra Damiano da Bergamo (Damiano di Antoniolo de Zambelli) · ca. 1547–48

The Nativity
Felice Giani, Italian, 1758–1823 · 1813–18

Samson Captured by the Philistines
Guercino (Giovanni Francesco Barbieri) · 1619

Various works of art. The court of Palazzo Mattei in Rome
Felice Giani, Italian, 1758–1823 · 1812–14

The Adoration of the Shepherds
Andrea Mantegna · shortly after 1450

Aviary
Giuseppe Jarmorini, Italian, ca. 1732 – 1816 · 1775–1800

The Baptism of Christ
Jacopo Bassano (Jacopo da Ponte) · ca. 1590

Sketchbook Page, Folio 57: Study after Porta di Saragossa in Bologna; Verso, Architectural Details
Felice Giani, Italian, 1758–1823 · 1811–14

Saints John the Baptist and an Evangelist (Matthew?)
Bicci di Lorenzo · 1433–35

Sketchbook Page, Folio 57: Study after Piazza Emmanuelle in Bologna; Verso, Architectural Detail
Felice Giani, Italian, 1758–1823 · 1811–14

Madonna and Child with Angels
Pietro di Domenico da Montepulciano · 1420

Medallion Portrait of Mauro Tesi, Surrounded by Architectural Ornaments, Frontispiece to the "Raccolta Di Disegni Originali Di Mauro Tesi..."
Count Cesare Massimiliano Gini, Italian, 1739 - 1821 · 1787

The Sacrifice of Iphigenia
Gaetano Gandolfi · 1789

Apollo Driving the Chariot of the Sun, for the Sala di Apollo e Diana, Palazzo Bianchetti, Bologna
Felice Giani, Italian, 1758–1823 · 1810–23

The Intercession of Christ and the Virgin
Lorenzo Monaco (Piero di Giovanni) · before 1402

Project for a Fountain
Giuseppe Jarmorini, Italian, ca. 1732 – 1816 · 1800–1810
![The Finding of Moses, by Jacopo [Giacomo] Barozzi da Vignola](/_next/image?url=https%3A%2F%2Fimages.metmuseum.org%2FCRDImages%2Fes%2Fweb-large%2FES7918.jpg&w=3840&q=75)
The Finding of Moses
Jacopo [Giacomo] Barozzi da Vignola · 16th century

Project for a painted ceiling with an antique bust in an archway
Flaminio Innocenzi Minozzi, Italian, 1735 – 1817 · 1807

Saint Louis of Toulouse
Cosmè Tura (Cosimo di Domenico di Bonaventura) · 1484?

Orobanche rubens Wallr.
Artist not stated in the record · primavera 1882
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. 49 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. 79161 matched · 40 examined · 9 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 2026-09-03 13:39 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.