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. 12 shown for “Gloeothece baileyana Schmidle” — 40 records examined, 0 dropped by the rights gate.
Archives queried 2026-09-05 01:10 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Gloeothece baileyana Schmidle
Artist not stated in the record · 1894 and 1895
Chroococcus insignis Schmidle
Artist not stated in the record · Aug 1896
Hyellococcus niger Schmidle
Artist not stated in the record · Mar 1905
Coelosphaerium holopediforme Schmidle
Artist not stated in the record · Aug 1900
Gloeothece minor Beck in Becker
Artist not stated in the record
Gloeothece rupestris (Lyngb.) Bornet in Wittr. & Nordstedt
Artist not stated in the record
Gloeothece rupestris (Lyngb.) Bornet in Wittr. & Nordstedt
Artist not stated in the record · 26 Jul 1893
Coleochaete soluta var. brevicellularis Schmidle in Wttrock & Nordstedt
Artist not stated in the record · 18 Sep 1894
Gloeothece rupestris (Lyngb.) Bornet in Wittr. & Nordstedt
Artist not stated in the record · 18 Aug 1898
Cloniophora spicata (Schmidle) A.K.Islam
Artist not stated in the record
Gloeothece tepidariorum var. cavernarum Hansg.
Artist not stated in the record · Sep 1888
Gloeothece prototypa N.L. Gardner
Artist not stated in the record · 27 Feb 1915
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. The archive returned no records for this term.0 matched - Smithsonian Open Access API (api.si.edu)Rights field:
content.descriptiveNonRepeating.metadata_usage.access. 282 matched · 40 examined · 0 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 2026-09-05 01:10 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.