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. 16 shown for “Chigi Group” — 57 records examined, 35 dropped by the rights gate.
Archives queried 2026-09-01 13:48 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Terracotta oinochoe (wine jug)
Chigi Group · ca. 625 BCE

Plan and Elevation for the Chigi Chapel at the Basilica of Santa Maria del Popolo
Raphael, Italian, 1483–1520 · ca. 1652–1655

Baptism of Christ
Alessandro Algardi · second half of the 17th century

Facade of the Palace of Cardinal Flavio Chigi, Rome
Artist not stated in the record · 17th century

The Sacrifice of Polyxena
Giovanni Francesco Romanelli

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

The Flight into Egypt
Carlo Maratti · ca. 1664

Potamogeton gramineus L.
Artist not stated in the record · 23 Jul 1903

The Musicians
Caravaggio (Michelangelo Merisi) · 1597

Fragment
Artist not stated in the record · 17th–18th century

Bookcase (one of a pair)
Niccolo Michetti · ca. 1715

Pope Clement X (1590–1676)
Giovanni Battista Gaulli (Il Baciccio) · ca. 1670–71

Madonna and Child Enthroned with Saints
Raphael (Raffaello Sanzio or Santi) · ca. 1504

Roman Landscape with a Shepherd and Sheep
Giovanni Benedetto Castiglione (Il Grechetto) · late 1640s

The Lamentation
Ludovico Carracci · ca. 1582

Saint Anthony the Abbot in the Wilderness
Sano di Pietro (Ansano di Pietro di Mencio) · ca. 1440
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. 17 matched · 17 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. 124404 matched · 40 examined · 35 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.5 shown
These figures describe the pass run at 2026-09-01 13:48 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.