OpenTwo 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. 13 shown for “Sheet music for “The Old Postmaster”” — 64 records examined, 43 dropped by the rights gate.
Archives queried 2026-09-02 05:14 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Portrait of Nicolas Trigault in Chinese Costume
Peter Paul Rubens · 1617
Sheet music for “The Old Postmaster”
Artist not stated in the record · 1900
Allegory of Music
Laurent de La Hyre · 1649
Merry Company on a Terrace
Jan Steen · ca. 1670
The Apotheosis of the Spanish Monarchy
Giovanni Battista Tiepolo · 1760s
Marcantonio Pasqualini (1614–1691) Crowned by Apollo
Andrea Sacchi · 1641
A Dance in the Country
Giovanni Domenico Tiepolo · ca. 1755
The Siesta
Paul Gauguin · ca. 1892–94
The Adoration of the Shepherds
Andrea Mantegna · shortly after 1450
The Crucifixion with the Virgin and Saint John
Hendrick ter Brugghen · ca. 1624–25
A Woodland Road with Travelers
Jan Brueghel the Elder · 1607
La Berceuse (Woman Rocking a Cradle; Augustine-Alix Pellicot Roulin, 1851–1930)
Vincent van Gogh · 1889
The Love Song
Sir Edward Burne-Jones · 1868–77
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. 4243 matched · 24 examined · 4 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. 1305996 matched · 40 examined · 39 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.1 shown
These figures describe the pass run at 2026-09-02 05:14 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.