OpenTechnical

OT-2026-000076609

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000076609) never changes.

Identity and time

Publication numberOT-2026-000076609 · never reused
Internal UUID01a0ae94-b06e-7853-8aaa-a16dd602fd56 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076609
StatusPUBLIC

Content hashes

Canonical textbf7efcee1f05df3a8d736de6aed5a516e7765d11a3de360bffc18f6077519ee8
Markdownfe38bc61f92f1dbeb0e24eae594fb0154a375aeda5ef53201364bb8f2e2ff9e1
PDF
Publication page9e6922606885ca47c3a5c1c84b820f4bd385fef8e47bfff48ec480e670481e6e
Manifest93f2d14fdef21d12dd3648c1ae4c76b953d41bdd9ed6b4723ab8f7a7bd3504d2

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
Signature9zDhXEj3hB6/WQz0RBhlkmKufVZE2DNGl+P5jEpSyRJtxNjIiDlnWlmLnt7u0KFrGa3kBcfwgrd5F7FiwNwiBQ==
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

2026-09-17T10:09:20.065256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076609
observed 9e6922606885ca47c3a5c1c84b820f4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:20.047135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076609/manifest.json
observed 93f2d14fdef21d12dd3648c1ae4c76b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:20.029394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076609/publication.md
observed fe38bc61f92f1dbeb0e24eae594fb015...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:20.009668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076609/publication.txt
observed bf7efcee1f05df3a8d736de6aed5a516...
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.