OpenTechnical

OT-2026-000074008

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000074008) never changes.

Identity and time

Publication numberOT-2026-000074008 · never reused
Internal UUID01a0ae93-2b8f-7d41-8ec6-d4d7e450e18d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074008
StatusPUBLIC

Content hashes

Canonical textabf6b3b191355c54db9bf111017b26a3eea180c029a649f7cda68f00f787ea56
Markdown2f5e002cfbfd9414bf33d65f42836988449abe36ba5fc4047c39d0cc04fe3006
PDF
Publication page5cc493de42a0a4c476c303d1976a8aff013325918217fb44e534fcf93c76e873
Manifesteca778c737a67a7694778c31c24677b11a3f601893af8546b47a1c3db2619c22

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
SignatureghCmYseYYPXhNj6Ym2gQSKGr/QtYFmClMAZ9wOfCZOfFLq+miFYQQy9mo5WTaAQeUN5wE0i1ICaXIMVOBui+Bg==
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

2026-09-17T10:19:56.941307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074008
observed 5cc493de42a0a4c476c303d1976a8aff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:56.922670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074008/manifest.json
observed eca778c737a67a7694778c31c24677b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:56.904113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074008/publication.md
observed 2f5e002cfbfd9414bf33d65f42836988...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:56.886565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074008/publication.txt
observed abf6b3b191355c54db9bf111017b26a3...
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.