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. 19 shown for “Buddhist altarpiece” — 47 records examined, 14 dropped by the rights gate.
Archives queried 2026-08-26 20:36 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Buddha Maitreya (Mile) Altarpiece
Artist not stated in the record · dated 524 (5th year of Zhengguang reign)

Buddhist altarpiece
Artist not stated in the record · 597

Buddha Maitreya (Mile) altarpiece
Artist not stated in the record · undated,ca. 525–30

Case for chaplain kit used by Army Chaplain Louis J. Beasley
Artist not stated in the record · 1939-1944

Bodhisattva (Maitreya) with crossed ankles
Artist not stated in the record · ca. 470–80

Study of "Altarpiece of Saint-Germer-de-fly," Paris, France
Francis Augustus Lathrop, American, 1849–1909 · ca. 1870

Dog
Artist not stated in the record · late 19th–early 20th century

Study of "Altarpiece of Saint-Germer-de-fly," Paris, France
Francis Augustus Lathrop, American, 1849–1909 · ca. 1870

Portrait of a Woman with a Man at a Casement
Fra Filippo Lippi · ca. 1440

Album of Lighthouse and Altarpiece Designs
A. Le Canu, French, active 1746 – 1768 · 1760–75

Bodhisattva (Maitreya) with crossed ankles
Artist not stated in the record · ca. 480–90

Study of "Altarpiece of Saint-Germer-de-fly," Paris, France
Francis Augustus Lathrop, American, 1849–1909 · ca. 1870

Head of a bodhisattva, probably Avalokiteshvara
Artist not stated in the record · early 6th century

Plans et Elevations de deux Retables d'autel Ornés de Pilastres differens. Pilastre Ionique. Pilastre Toscan.
Juste-François Boucher, French, 1736 – 1782 · 1774

Title Page
A. Le Canu, French, active 1746 – 1768 · 1768

Autel
A. Le Canu, French, active 1746 – 1768 · 1768

Study of Four Figures, for the Burial of St. Petronilla Altarpiece at St. Peter's
Giovanni Francesco Barbieri (called Guercino), Italian, 1591 – 1666 · ca. 1623

Two Alternative Designs for Altars
Juan Dolívar, Spanish, active in France, 1641–1692 · 1690

Study for an Altarpiece: the Madonna Worshipped by Saints and, Possibly, Donors
Artist not stated in the record · 1530–1560
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. 7 matched · 7 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.7 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 640 matched · 40 examined · 14 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 2026-08-26 20:36 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.