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. 21 shown for “Giovanni Antonio Boltraffio” — 64 records examined, 31 dropped by the rights gate.
Archives queried 2026-08-27 03:07 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
The Head of a Woman in Profile Facing Left
Giovanni Antonio Boltraffio · 1490–1500
After Boltraffio, "Sacra Conversazione"
Kenyon Cox, born Warren, OH 1856-died New York City 1919 · 1878-1882
The Triumph of Fame; (reverse) Impresa of the Medici Family and Arms of the Medici and Tornabuoni Families
Giovanni di ser Giovanni Guidi (called Scheggia) · ca. 1449
A Stucco Angel from the Nave Vault, Church of the Gesu, Rome," from the album "Drawings after Ornament and Architecture"
Jean-Robert Ango, French, active in Rome 1759 –1770, d. 1773 · ca. 1759–70
Piazza San Marco
Canaletto (Giovanni Antonio Canal) · late 1720s
Portrait of Marcantonio Franceschini (1648-1729)
Artist not stated in the record · ca. 1750
Madonna and Child
Giovanni Bellini · late 1480s
Veduta del Tempio di Antonio e Faustina in Campo Vaccino
Giovanni Battista Piranesi, Italian, 1720–1778 · 1758
Study for the Equestrian Monument to Francesco Sforza
Antonio Pollaiuolo · early to mid 1480s
Facade of the Palace of Mr. D'Aste on St. Mark's Square, Rome
Giovanni Antonio Rossi, Italian, active 1553 · 17th century
Madonna and Child with Angels
Antonio Rossellino · ca. 1455–60
Pentecost
Giovanni Antonio Pellegrini, Italian, 1675–1741 · ca. 1700
Saints Peter, Martha, Mary Magdalen, and Leonard
Correggio (Antonio Allegri) · ca. 1515
Stage Design: Palace Entrance with Arch
Giovanni Antonio Galliari, 1718 - 1783 · ca. 1750
Christ Crowned with Thorns
Antonello da Messina (Antonello di Giovanni d'Antonio)
Sketches of Peg-Legged Men
Artist not stated in the record · 1740–50
Portrait of a Young Man
Antonello da Messina (Antonello di Giovanni d'Antonio) · ca. 1470
State Coach
Giovanni Paolo Schor, 1615 – 1674 · 1650–60
Warwick Castle: The East Front
Canaletto (Giovanni Antonio Canal) · 1752
Allegory of the Planets and Continents
Giovanni Battista Tiepolo · 1752
The Glorification of the Barbaro Family
Giovanni Battista Tiepolo · ca. 1750
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. 623 matched · 24 examined · 0 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. 38407 matched · 40 examined · 31 dropped by the rights gate. Kept only where metadata_usage.access === "CC0" and an image resource was published.9 shown
These figures describe the pass run at 2026-08-27 03:07 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.