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 “Alchemist and his Assistant” — 24 records examined, 1 dropped by the rights gate.
Archives queried 2026-08-28 21:44 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.
Alchemist and his Assistant
Artist not stated in the record · ca. 1770–75
Panel with San Millán
Master Engelram and his son Redolfo · 1060–80
The Last Supper
Fra Damiano da Bergamo (Damiano di Antoniolo de Zambelli) · 1548
Reclining Naiad
Antonio Canova · 1819–24
Chapel from Le Château de la Bastie d'Urfé
Fra Damiano da Bergamo (Damiano di Antoniolo de Zambelli) · ca. 1547–48
The Assumption of the Virgin
Bernardo Daddi · 1337–38
The Kangxi Emperor's Southern Inspection Tour, Scroll Three: Ji'nan to Mount Tai
Wang Hui · datable to 1698
Bust of Pseudo-Seneca
Peter Paul Rubens · 1600–1626
Madonna and Child
Simone Martini · ca. 1326
Madonna and Child
Luca Signorelli (Luca d'Egidio di Luca di Ventura) · ca. 1505–7
Madonna and Child
Carlo Crivelli · ca. 1480
Francesco Sassetti (1421–1490) and His Son Teodoro
Domenico Ghirlandaio (Domenico Bigordi) · ca. 1488
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. 1450 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. 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 21:44 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.