OpenTechnical

OT-2026-000084399

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, 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-2026-000084399) never changes.

Identity and time

Publication numberOT-2026-000084399 · never reused
Internal UUID01a0ae98-5b62-727b-830e-7db44e170b6a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084399
StatusPUBLIC

Content hashes

Canonical texta8d729c29c622e87b1f687d9f57ee7659f08306122a464b0c886772318c364d3
Markdownd06fda92347bc1022938b2c2a0a83e11426d4a6070013ab8130e2f0635c2dc2a
PDF
Publication page21cd288f07b54e222fd8ec6f1c31f84c3d454cb99858401c578912e7701ea1a1
Manifest39f81b80796a3a418f6c8dc84d5bebdb3fd2eabee0d28b46a2bd622b91b8f5f9

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
Signature08tjBNU9BulZo+F2owthvrxyesjCedfWCbonHCbh4/alEFOromTREgNgfUE2YYgNeDtYp1Kp4ZD37YYW7o2qCQ==
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

2026-09-17T09:56:20.655903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084399
observed 21cd288f07b54e222fd8ec6f1c31f84c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:20.637989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084399/manifest.json
observed 39f81b80796a3a418f6c8dc84d5bebdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:20.619896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084399/publication.md
observed d06fda92347bc1022938b2c2a0a83e11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:20.602896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084399/publication.txt
observed a8d729c29c622e87b1f687d9f57ee765...
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.