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. 15 shown for “Melchiorre Cafà” — 43 records examined, 21 dropped by the rights gate.
Archives queried 2026-08-29 06:36 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Pope Alexander VII (Fabio Chigi, 1599–1667; reigned 1655–67)
Melchiorre Cafà · 1667
Four Sketches of a Saint
Francesco Manno, Italian, 1754 - 1831 · 1800–1820
The Ecstasy of Saint Catherine of Siena, kneeling on a cloud carried by angels, one of whom holds a lily
Simon Francis Ravenet, the elder · 1729–40
Glory with Trinity and Saints (recto), architectural plan for the church of Santa Maria d'Itria in Rome
Francesco Manno, Italian, 1754 - 1831 · ca. 1814–1819
Baptism of Christ
Alessandro Algardi · second half of the 17th century
Sketch of an Allegorical Statue
Melchiorre de Gregorio, Italian, 1777 - 1840 · 1825–1850
Celastrophyllum latifolium Fontaine
Artist not stated in the record
Piranga rubra rubra
Artist not stated in the record
Vaccinium pontzuelum Berry & Singewald
Artist not stated in the record
Phyllanthus niruri L.
Artist not stated in the record · 2 Oct 1898
Bouteloua parryi
Artist not stated in the record · Transcribed d/m/y: 6/10/4
Amazilia cyanifrons
Artist not stated in the record
Phoenicurus phoenicurus phoenicurus
Artist not stated in the record · 12 Oct 1935
Vicia picta Fisch. & C.A. Mey.
Artist not stated in the record · 188
Atrichum angustatum (Brid.) Bruch & Schimp.
Artist not stated in the record · 12 Oct 1927
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. 3 matched · 3 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.3 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 216 matched · 40 examined · 21 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 2026-08-29 06:36 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.