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. 22 shown for “Pietro da Barga” — 64 records examined, 5 dropped by the rights gate.
Archives queried 2026-08-28 22:42 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Farnese Hercules
Pietro da Barga · modeled ca. 1576; cast 17th century

Figural Study
Pietro da Cortona, Italian, 1596 - 1669 · 1596–1669

Jupiter
Benvenuto Cellini · late 16th century

Sketchbook page: Allegorical Figure
Pietro da Cortona, Italian, 1596 – 1669 · 1660–69

Neptune
Pietro da Barga · ca. 1580

Scene in the Clouds with Putto and Doves
Pietro da Cortona, Italian, 1596 - 1669 · ca. 1632

Madonna and Child with Donors
Giovanni da Milano · ca. 1365

Music
Artist not stated in the record · 1777

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

CIncinnatus Summoned from the Field, study for the "Storia di Cincinnato," Gallery of the Villa Sacchetti (Now Chigi), Castelfusano
Pietro da Cortona, Italian, 1596 - 1669 · 1626–1629

Portrait of Pietro Angela da Barga, bust-length and in a decorative border
Cherubino Alberti (Zaccaria Mattia) · 1570–1615

Holy Family
Artist not stated in the record · ca. 1650-1670

Madonna and Child with the Donor, Pietro de' Lardi, Presented by Saint Nicholas
Master G.Z. (possibly Michele dai Carri, Italian, Ferrara, active by 1405–died 1441 Ferrara) · ca. 1420–30

Emberiza aureola
Artist not stated in the record · 14 Jun 1933

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

Saint Anthony the Abbot in the Wilderness
Sano di Pietro (Ansano di Pietro di Mencio) · ca. 1440

The Last Supper
Ugolino da Siena (Ugolino di Nerio) · ca. 1325

Designs for Silver Serving Pieces
Pietro Belli, Italian, 1780–1828 · early 19th century

Barbute
Pietro da Castello · ca. 1470–80

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

The Holy Family with the Infant Saint John the Baptist
Perino del Vaga (Pietro Buonaccorsi) · ca. 1524–26
Tringa totanus ussuriensis
Artist not stated in the record · 13 Jun 1940
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. 428 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. 63114 matched · 40 examined · 5 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 2026-08-28 22:42 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.