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 “Master of the Biberach Holy Kinship” — 64 records examined, 19 dropped by the rights gate.
Archives queried 2026-08-31 16:11 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Saint Roch and the Angel
Master of the Biberach Holy Kinship · ca. 1520

Flier advertising S.S. Jones farewell meeting
Unidentified · ca. 1924

The Virgin and Child in Majesty and the Adoration of the Magi
Master of Pedret · ca. 1100

Campanula cervicaria L.
Artist not stated in the record · 15 Aug 1880

The Death of the Virgin (The Dormition)
Tilman Heysacker · late 15th century

Chara vulgaris L.
Artist not stated in the record · 20 Aug 1980

Holy Woman
Master of Rimini · ca. 1430

Nitella opaca
Artist not stated in the record · 16 Aug 1982

The Assumption of the Virgin
Bernardo Daddi · 1337–38

The Mughal Prince Parvez and a Holy Man
Artist not stated in the record · ca. 1610

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

Design for a Holy Water Spout
Artist not stated in the record · late 18th century

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

Holy Family
Samuel Ireland, English, ca. 1744–1800 · 1794

The Adoration of the Shepherds
Andrea Mantegna · shortly after 1450

The Descent of the Holy Spirit (The Pentecost), from The Little Passion Series
Artist not stated in the record · ca. 1509–1511

Mary Magdalene at the Foot of the Cross
Master of Rimini · ca. 1420–30

Project for a Holy Water Font
Artist not stated in the record · 1790–1820

The Holy Family with the Young Saint John the Baptist
Andrea del Sarto (Andrea d'Agnolo) · ca. 1528

The Holy Family with Butterfly
Artist not stated in the record · ca. 1495

Holy Family
Niclaus Weckmann · ca. 1500

The Holy Family
Giovanni Benedetto Castiglione, Italian, 1609–1664 · 1620–30

The Dormition of the Virgin; (reverse) Christ Carrying the Cross
Hans Schäufelein · ca. 1510

Design for a Holy Water Stoup
Thomas Lainé, French, 1682 – 1739 · ca.1740
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. 562 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. 2984381 matched · 40 examined · 19 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 2026-08-31 16:11 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.