OpenTechnical

OT-2026-000022977

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, sustained blow-off 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-2026-000022977) never changes.

Identity and time

Publication numberOT-2026-000022977 · never reused
Internal UUID01a0ae70-46ec-71dd-b72b-e16d556ec699 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022977
StatusPUBLIC

Content hashes

Canonical text9fac455df38992e0186a243c8e359ec920ef79e9aee8dc3e452de2d6ec793f35
Markdownc9a5e63b24580fe9ede2d44fadb1a4f72ddc26f80b248ba511d1fe925954d54c
PDF
Publication page23eb9128f42e9753f528eeeef8e7e0fefe9508c8925d0606218e419a7bbfb628
Manifest85b1691e458dcd0f4e014f7335e6e57c498ec65048832640cc85fae1720d47fe

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
Signature75l9su6L23D/DkQQBepRnfVnBtJstm3UMipWExV9tRwA0pAAorENNrU6Qn/afeXuXuCYAjsdO29/bcGok+UXAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:34.010540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022977
observed 23eb9128f42e9753f528eeeef8e7e0fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:33.991490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022977/manifest.json
observed 85b1691e458dcd0f4e014f7335e6e57c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:33.973842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022977/publication.md
observed c9a5e63b24580fe9ede2d44fadb1a4f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:33.956550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022977/publication.txt
observed 9fac455df38992e0186a243c8e359ec9...
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.