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 “Portrait of Lucas Vorsterman I, from the Icones Principum Virorum” — 49 records examined, 14 dropped by the rights gate.
Archives queried 2026-09-01 08:17 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Lucas and Cornelius van Wael
Wenceslaus Hollar · 1646
Portrait of Lucas Vorsterman I, from the Icones Principum Virorum
Artist not stated in the record · 1630–1641
Hieronymus Westonius (Richard Weston, Earl of Portland)
Wenceslaus Hollar · 1645
Portrait of Anthony Cornelissen, from the Icones Principum Virorum
Artist not stated in the record · 1660
Bishop Jan van Malderus (Malderen)
Wenceslaus Hollar · 1645
Portrait of the Infanta Isabella Clara Eugenia of Spain, from the Icones Principum Virorum
Artist not stated in the record · ca. 1660
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
Portrait of Wencelaus Coeberger, from the Icones Principum Virorum
Artist not stated in the record · ca. 1630-1640
Theatrvm pictorivm : in quo exhibentur ipsius manu delineatæ, eiusque curâ in æs incise picturæ, archetipæ Italicæ, quas ipse ser.mus Archdux in pinacothecam suam Bruxellis collegit
David Teniers the Younger · 1684
Portrait of Peter Stevens, from the Icones Principum Virorum
Artist not stated in the record · 1650-1660
Martyrdom of Saint Lawrence
Lucas Vorsterman I · 1621
Portrait of Jan Snellinx, from the Icones Principum Virorum
Artist not stated in the record · ca. 1636
Head of a Donor
Albert van Ouwater · ca. 1465–70
Portrait of Jan Snellinck, from the Icones Principum Virorum
Artist not stated in the record · 1660
Portrait of a Woman
British Painter · ca. 1600
Portrait of Gerard Seghers, from the Icones Principum Virorum
Artist not stated in the record · 1630
Salvator Mundi
Albrecht Dürer · ca. 1505
Portrait of Frans Francken, from the Icones Principum Virorum
Artist not stated in the record · 1645-1650
Portrait of Erasmus Rotterdamus, from the Icones Principum Virorum
Artist not stated in the record · 1630–1640
Portrait of Frans Francken, from the Icones Principum Virorum
Artist not stated in the record · 1630–1641
Portrait of Josse de Momper, from the Icones Principum Virorum
Artist not stated in the record · 1660
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. 9 matched · 9 examined · 0 dropped by the rights gate. Kept only where isPublicDomain === true and a file URL was published.9 shown - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 3158253 matched · 40 examined · 14 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 2026-09-01 08:17 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.