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 “Initiation Card (Tsakalis): Mahakala” — 64 records examined, 28 dropped by the rights gate.
Archives queried 2026-09-01 19:06 UTC · fetched live for this request
isPublicDomain field is true for this object.metadata_usage.access reads CC0 — a waiver, not an expired term.
Initiation Card (Tsakalis): Mahakala
Artist not stated in the record · early 15th century

Hōrōkaku Mandara
Artist not stated in the record · 12th century

Initiation Card (Tsakalis): Hayagriva
Artist not stated in the record · early 15th century

Button
Artist not stated in the record · 19th century

Initiation Card (Tsakalis): Vajrapani
Artist not stated in the record · early 15th century

Card case
Artist not stated in the record · 18th century

Initiation Card (Tsakalis): Manjushri
Artist not stated in the record · early 15th century

Card case
Artist not stated in the record · 19th century

Initiation Card (Tsakalis): Samanthabhandra
Artist not stated in the record · early 15th century

Card case
Artist not stated in the record · 19th century

Initiation Card (Tsakalis): Ratnasambhava
Artist not stated in the record · early 15th century

Button
Artist not stated in the record · France

Initiation Card (Tsakalis): Yama
Artist not stated in the record · early 15th century

3c Canal Zone Ship in Lock Postal Card plate proof
Bureau of Engraving and Printing

Initiation Card (Tsakalis): Amoghasiddhi
Artist not stated in the record · early 15th century

5c Canal Zone Plane, Flag and Map Air Post Postal Card plate proof
Bureau of Engraving and Printing

Initiation Card (Tsakalis): Akashagarbha
Artist not stated in the record · early 15th century

1c Washington, 1c playing card, 7c air experimental plate proof
Bureau of Engraving and Printing · May 27, 1959

Initiation Card (Tsakalis): Vairochana
Artist not stated in the record · early 15th century

5c Canal Zone Plane, Flag and Map Air Post Postal Card plate proof
Bureau of Engraving and Printing

Initiation Card (Tsakalis): Bhumirgharba
Artist not stated in the record · early 15th century

3c Canal Zone Ship in Lock Postal Card plate proof
Bureau of Engraving and Printing

Initiation Card (Tsakalis): Amitabha
Artist not stated in the record · early 15th century

1c GW, 1c playing cards, 7c air experimental plate proof
Bureau of Engraving and Printing · June 8, 1959
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. 26 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. 225933 matched · 40 examined · 28 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 19:06 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.