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. 24 shown for “Glass mosaic base ring fragment” — 64 records examined, 3 dropped by the rights gate.
Archives queried 2026-09-01 17:24 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Glass mosaic base ring fragment
Artist not stated in the record · late 1st century BCE–early 1st century CE
Fragment of a ring
Artist not stated in the record · 305 BCE-19 CE
Mosaic glass fragment
Artist not stated in the record · late 1st century BCE–early 1st century CE
Fragment of an inlay
Artist not stated in the record · 305 BCE - 14 CE
Glass garland bowl
Artist not stated in the record · late 1st century BCE
Fragment of a bowl
Artist not stated in the record · 305 BCE-14 CE
Glass mosaic bowl fragment
Artist not stated in the record · late 1st century BCE–early 1st century CE
A Fragment. Columnar rod and plate mosaic
Artist not stated in the record · 305 BCE-14 CE
Glass mosaic bowl fragment
Artist not stated in the record · late 1st century BCE–early 1st century CE
Fragment of block for slicing inlay. Columnar and plate mosaic
Artist not stated in the record · 305 BCE-14 CE
Glass mosaic bowl fragment
Artist not stated in the record · late 1st century BCE–early 1st century CE
Rim fragment of a bowl or cup
Artist not stated in the record · 200 BCE-100 CE
Glass gladiator cup
Artist not stated in the record · ca. 50–80 CE
Fragment
Artist not stated in the record · 1st century or later
Glass mosaic jar
Artist not stated in the record · 2nd–early 1st century BCE
Fragment
Artist not stated in the record · 1st century
Ribbed mosaic glass bowl with base ring
Artist not stated in the record · late 1st century BCE–early 1st century CE
Fragment
Artist not stated in the record · 1st century or later
Glass network mosaic bowl with base ring
Artist not stated in the record · mid-1st century BCE
Fragment
Artist not stated in the record · 1st century or later
Glass network mosaic bowl with base ring
Artist not stated in the record · 1st century BCE
Fragment of inlay. Columnar rod mosaic
Artist not stated in the record · 305 BCE-14 CE
Glass gold-band mosaic scyphus (drinking cup)
Artist not stated in the record · late 1st century BCE–early 1st century CE
Fragment of inlay. Columnar rod and plate mosaic
Artist not stated in the record · 305 BCE-14 CE
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. 89 matched · 24 examined · 2 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. 173097 matched · 40 examined · 1 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 17:24 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.