Two 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 “M. Pin” — 64 records examined, 27 dropped by the rights gate.
Archives queried 2026-09-01 10:42 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Shawl
M. Pin · 19th century

Imperata brasiliensis Trin.
Artist not stated in the record · 10 Jun 1925 or 6 Oct 1925

Carved amber bow of a fibula (safety pin)
Artist not stated in the record · ca. 500 BCE

Dioscorea alainii Raz
Artist not stated in the record · 16 Dec 1924

Pin
Artist not stated in the record · ca. 1900

Imperata brasiliensis Trin.
Artist not stated in the record · 10 Jun 1925 or 6 Oct 1925

Pin
Artist not stated in the record · 4th century BCE

Gisara ambigua
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Chadisra malocampoides
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Melipona marginata carrikeri
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Melipona schausi convolvuli
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Trigona atomaria
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Melipona fasciata costaricensis
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Trigona (Trigona) dimidiata var. venezuelana
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Trigona (Nannotrigona) testaccicornis tristella
Artist not stated in the record

Pin
Artist not stated in the record · 4th century BCE

Melipona fasciata melanopleura
Artist not stated in the record
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. 377 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. 1383678 matched · 40 examined · 27 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 10:42 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.