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. 22 shown for “Fontana workshops” — 63 records examined, 8 dropped by the rights gate.
Archives queried 2026-09-06 02:28 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Wine cooler with A Pageant Battle with Elephants
Fontana family · ca. 1562–75
Plate with the Contest between the Muses and the Pierides
Urbino Workshop · ca. 1540-1550
Dish
Fontana workshops · ca. 1550–60
Project: A pulpit shown in profile
Artist not stated in the record · 1700–1750
Dish with The Discovery of Achilles
Fontana workshops · ca. 1555–60
Sepulchral Monument for Felice Fontana, Professor of Philosophy, Padua
Giuseppe Barberi, Italian, 1746–1809 · after 1795
Dish with Jacob's Dream
Orazio Fontana · ca. 1550
Philonotis fontana var. alpicola Paris
Artist not stated in the record
Cistern
Orazio Fontana · ca. 1545
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Large plate (grande piatto): An episode from the Sack of Rome, 1527: the assault on the Borgo (?)
workshop of Guido Durantino · ca. 1540
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Pilgrim bottle
Orazio Fontana · ca. 1550
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Pilgrim bottle
Orazio Fontana · ca. 1550
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Oval basin or dish with subject from Amadis of Gaul
Orazio Fontana · ca. 1559–64
Philonotis fontana (Hedw.) Brid.
Artist not stated in the record
Oval basin or dish with subject from Amadis of Gaul
Orazio Fontana · ca. 1559–64
Bartramia fontana (Hedw.) Turner
Artist not stated in the record
Design for a Festival Float or Barge
Perino del Vaga (Pietro Buonaccorsi) · ca. 1530–40
Triton
Giambologna · 1590s
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. 23 matched · 23 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. 2201 matched · 40 examined · 7 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 2026-09-06 02:28 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.