OpenTechnical

OT-2026-000032391

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, pulsed 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-2026-000032391) never changes.

Identity and time

Publication numberOT-2026-000032391 · never reused
Internal UUID01a0ae75-106e-76cd-b2e8-e3b858ff0ebd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:42.658092Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032391
StatusPUBLIC

Content hashes

Canonical text2d0d54fb9f8789f25f360b849885dac0cdc3bebb97a573471a826bc218734664
Markdown5f60ecca7311cddce0f49f8dd07cf230fbd5bb0544fae0a06752b029ae8ab871
PDF
Publication page518cc384cf3eabc986473d57fbb0bea629f772c682badb0b1ccda4c5894b084c
Manifest74b1f97f61bf922dd117e5ed2b12f09a6a28d5c778106d7431cd16373b33a519

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
SignaturewgJy9KoSu+sAZJGOUASvwCgu3DtoKYjLdbrzJkaSl6a88ewOyKKEW90LDMwHXH0cx8zGaTBrohvYU//NxXGNAQ==
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

2026-09-17T11:33:48.065427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032391
observed 518cc384cf3eabc986473d57fbb0bea6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:48.048590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032391/manifest.json
observed 74b1f97f61bf922dd117e5ed2b12f09a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:48.029105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032391/publication.md
observed 5f60ecca7311cddce0f49f8dd07cf230...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:48.009390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032391/publication.txt
observed 2d0d54fb9f8789f25f360b849885dac0...
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.