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 “Johann Gotthard Müller” — 64 records examined, 4 dropped by the rights gate.
Archives queried 2026-09-01 11:12 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Battle of Bunker's Hill (June 17, 1775)
Johann Gotthard Müller · 1788–98

View of the Pitti Palace in Florence, Plate 2 from "Scelta di XXIV Vedute delle principali contrade, piazze, chiese, e palazzi della Città di Firenze"
Artist not stated in the record · ca. 1743

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

Realto Bridge, Court of Justice, Public German Warehouse
John Bowles, British, active 1724 - 1756 · 1744

Astrolabe
Regiomontanus · 1462
Chara canescens Loisel.
Artist not stated in the record · Oct 1844

Resurrection of Christ
Anonymous, Netherlandish, 16th century · late 16th–early 17th century

Grimmia montana Bruch & Schimp.
Artist not stated in the record

Watch
Johann Gottlieb Müller · 19th century

Bryum botteri C. Mohr
Artist not stated in the record

Plate with crest of Landsberg-Vehlen
Johann Peter Müller · 1755–57

Ode on the Spring
Thomas Gray, British, 1716 – 1771 · 1753

The Gentleman and Cabinet-Maker's Director. Being a Large Collection of the Most Elegant and Useful Designs of Household Furniture in the Gothic, Chinese and Modern Taste
Thomas Chippendale · 1754

Title Page
Thomas Gray, British, 1716 – 1771 · 1753

Gentleman and Cabinet-Maker's Director
Thomas Chippendale · 1755

Hymn to Adversity
Thomas Gray, British, 1716 – 1771 · 1753

The Gentleman and Cabinet-Maker's Director
Thomas Chippendale · 1762

Ode on the Spring
Thomas Gray, British, 1716 – 1771 · 1753

A faithful representation of the fireworks display presented by Johann Müller as proof of his Mastership, Johannis Schiessplatz, Nuremberg, 1659
Anonymous · 1659

Rhacomitrium sudeticum
Artist not stated in the record

Allegory of the Catholic Faith
Johannes Vermeer · ca. 1670–72

Rhacomitrium sudeticum
Artist not stated in the record

A Maid Asleep
Johannes Vermeer · ca. 1656–57

Rhacomitrium heterostichum
Artist not stated in the record
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. 80 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. 12983 matched · 40 examined · 4 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 2026-09-01 11:12 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.