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. 12 shown for “Érard” — 33 records examined, 10 dropped by the rights gate.
Archives queried 2026-08-29 07:14 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Grand Pianoforte
Érard · ca. 1840
Harp String Gauge
Érard · 1829
Harp Tuning Key
Érard · 19th century
Pedal Harp
Erard et Cie · 1895
Pedal Harp
Erard Freres et Co · ca. 1815–20
Standing Bishop
Hans von Reutlingen · ca. 1510
Honor from the series "The Honors"
Bernard van Orley · designed before 1520, woven between 1525 and 1532
Self-Portrait
Gerrit Dou · ca. 1665
Standing Female Saint
Hans von Reutlingen · ca. 1510
Portable Harp
Joseph George Morley · late 19th century
Portable Harp
John Egan · 1819
Square Piano
Jonas Chickering · 1829
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. 24 matched · 24 examined · 1 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. 9 matched · 9 examined · 9 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.0 shown
These figures describe the pass run at 2026-08-29 07:14 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.