OpenTechnical

OT-2026-000072504

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, supply line pressure sensor, vented before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000072504) never changes.

Identity and time

Publication numberOT-2026-000072504 · never reused
Internal UUID01a0ae92-89d8-7b16-9542-ef1b3ed1f297 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072504
StatusPUBLIC

Content hashes

Canonical textde143b4de900d7490c8ff296f42ac3aa17120d30be45dcf1162d4d64e3a30354
Markdown71e67ac4b97cc984fc521a80b9747b505781d46663b6abb7c2215be4606b7551
PDF
Publication page8b9e3cc06e7f5f7a1927c8ab9732d9f85f879f458dd146ab5e0937b4fd724c8c
Manifest8478a020f212104b9adf39382f0d37fdbfad13d500ce1f9032993a867439a3bc

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturebLlSLU0GhWQKG9ly3IiJ3xfacg+YCO3e8bxW4v+lKp1AGpxb2AM1SWyyARkSXrs69OFzPph8Vtmo93kZh3YjCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:22:19.882858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072504
observed 8b9e3cc06e7f5f7a1927c8ab9732d9f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.865849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072504/manifest.json
observed 8478a020f212104b9adf39382f0d37fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.847821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072504/publication.md
observed 71e67ac4b97cc984fc521a80b9747b50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.830267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072504/publication.txt
observed de143b4de900d7490c8ff296f42ac3aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.