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 “Johann Baptist Harnisch” — 24 records examined, 0 dropped by the rights gate.
Archives queried 2026-08-28 21:27 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.Smithsonian Open Access: HTTP 429 from api.si.edu. Results from the remaining archive are shown unchanged — nothing is substituted for a source that did not answer.

Commemorating Marriage of Napoleon and Marie Louise
Johann Baptist Harnisch · 1810

Marriage of Napoleon and Marie Louise. 1810.
Johann Baptist Harnisch · 19th century

Design for a Wall Panel or Ceiling with The Virgin and Saints Interceding before Christ for the Souls of the Lost
Johann Baptist Enderle · 1771 or before

Christ at the Column
Johann Baptist Hagenauer · ca. 1754–56

Johann Joachim Winckelmann (1717–1768)
Anton Raphael Mengs · ca. 1777

ex "Kurtz" Violin
Andrea Amati · ca. 1560

Medallion with Saint John the Baptist from an Icon Frame
Artist not stated in the record · ca. 1100

Head of Saint John the Baptist on a Charger
Aelbert Bouts · ca. 1500

Horse Armor Made for Johann Ernst, Duke of Saxony-Coburg (1521–1553)
Kunz Lochner · dated 1548

The Preaching of John the Baptist
Bartholomeus Breenbergh · 1634

The Martyrdom of Saint John the Baptist
Bernard van Orley · ca. 1514–15

Salome with the Head of John the Baptist
Gustave Moreau · ca. 1876
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. 155 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. HTTP 429 from api.si.edu. No records from this archive are shown for this query.Unavailable
These figures describe the pass run at 2026-08-28 21:27 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.