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. 12 shown for “Pietro de Formicano” — 40 records examined, 4 dropped by the rights gate.
Archives queried 2026-08-27 07:45 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.

Stage Design, Church Facade from a Loggia, I due Valdomiri by Felice Romani, music by Pietro de Winter. Performed at La Scala, Milan, 1818
Romolo Achille Liverani, Italian, 1809 - 1872 · early 19th century

Jane Cocking Glover
Pietro Bonanni, 26 Nov 1789 - 15 Jun 1821 · 1821

Galium sp.
Artist not stated in the record · Apr 1841

Déclaration de la Grossesse, Plate 13 from "Monument de Costume"
Artist not stated in the record · 1776

Piazza de' Cavalli in Piacenza
Pietro Narducci, Italian, active 1809 - 1841 · 1825–50

Heads of an elephant, boar, lion, donkey and a butterfly, plate from the "Scuola Perfetta per Imparare a Disegnare tutto il corpo Humano Cavata dallo studio e disegni de Caracci"
Artist not stated in the record · 1597–1629

Vicia andicola Kunth
Artist not stated in the record · 5 Feb 1945

The death of King Teja
Pietro Narducci, Italian, active 1809 - 1841 · ca. 1825–50

The temples of Apollo and Diana built for the first day of the fireworks at SS. Peter and Paul by Paolo Posi
Artist not stated in the record · 1763

Sketchbook Page: Atrium, San Pietro, Bologna and Detail from San Pietro; Detail from S. Michele in Bosco; Verso, Geometrical Studies of Heads
Felice Giani, Italian, 1758–1823 · 1811–14
Euphorbia platyphylla L.
Artist not stated in the record

Portrait of Pietro Aretino (1492-1556)
Artist not stated in the record · 1517–1520
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. 613294 matched · 40 examined · 4 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 2026-08-27 07:45 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.