
Marble portrait head of the Emperor Constantine I
Unrecorded maker
ca. 325–370 CE · Marble
Cleared · Public Domain
liveRights clearance desk for images
Museums publish two different things about the same artwork: whether the work is in copyright, and whether their picture of it is. OpenPlate reads both, does the arithmetic on the published term, and shows you the sentence behind every point of the score.
Where this page got its records
151 ms. The Metropolitan Museum of Art, Collection API (Open Access)
289 ms. The Cleveland Museum of Art, Open Access API
2 of 2 providers answered live. 6 matching records exist across the two collections.
Institutions answered newest-first by record, interleaved

Marble portrait head of the Emperor Constantine I
Unrecorded maker
ca. 325–370 CE · Marble
Cleared · Public Domain
live
Cassone with painted front panel depicting the Conquest of Trebizond
Apollonio di Giovanni di Tomaso (d. 1465)
after ca. 1461 · Poplar wood, linen, polychromed and gilded gesso with panel painted in tempera and gold
Cleared · Public Domain
live
The Triumphal Chariot of Maximilian I (The Great Triumphal Car)
Albrecht Dürer (d. 1528)
probably finished ca. 1518, published 1522 · Woodcut
Cleared · Public Domain
live
Allegory of Virtues and Vices at the Court of Charles V
Hans Daucher (d. 1538)
ca. 1522 · Honestone (Jurassic limestone), traces of gilding
Cleared · Public Domain
live
Cabinet
Melchior Baumgartner
ca. 1655–59, engraved decorations ca. 1825–50 · Oak, pine, walnut, cedar, ebony, and rosewood; ivory veneer and silver veneer; silver; silver-gilt moldings; gilded yellow-metal mounts; the drawers lined with aquamarine-colored silk
Cleared · Public Domain
liveNo open reproduction
The institution withholds the image for this record, which is itself the answer: the picture on their page is not theirs to give away.
The Great Triumphal Car (copy)
Albrecht Dürer (d. 1528)
16th century · Woodcut
In copyright
live1. Pin the work
Choose the record and say what you are actually going to do with it. The product re-reads the work live and stores a snapshot, so your docket records what the institution said today.
2. Read the arithmetic
Six weighted factors: the institution's own claim, the creator's term, the publication-age rule, the restrictions in their statement, your use, and whether a credit line is even possible.
3. Seal and export
Record the decision into a SHA-384 chain, then export a dated docket as JSON, CSV or Markdown with the credit line and the seal a colleague can re-verify.