OpenTechnical

OT-2026-000013291

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000013291) never changes.

Identity and time

Publication numberOT-2026-000013291 · never reused
Internal UUID01a0ae6d-6fc9-7283-82ee-d75fc8472e1e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013291
StatusPUBLIC

Content hashes

Canonical textace2bdbadfd32e2b72da9ef320513ffca33cd8bd432ae7687bb0088f1637c4f4
Markdownd3ab09c2e4959e4414187e609a28d07f66eecf6eae46e32d508ca4d29a070b6e
PDF
Publication page475334a4663cd059820b37fd07ac37608b42bd35a3a3bdddc403169177780654
Manifestde9dc1ce23fede14e1728eaaf11087fcaaf686b657b35ff3f07a8f46da2026e2

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
SignatureiPOT+pLavDubFCG/rw6CqUaTcYfIe7uejxMQsiuAniSLAkdq5pJTLu8h2EvNl6HyKmbs7InRj67UrAcFMxIECw==
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

2026-09-17T12:09:42.856414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013291
observed 475334a4663cd059820b37fd07ac3760...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:42.838119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013291/manifest.json
observed de9dc1ce23fede14e1728eaaf11087fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:42.818877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013291/publication.md
observed d3ab09c2e4959e4414187e609a28d07f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:42.799141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013291/publication.txt
observed ace2bdbadfd32e2b72da9ef320513ffc...
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.