OpenTechnical

OT-2026-000079690

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented after 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-2026-000079690) never changes.

Identity and time

Publication numberOT-2026-000079690 · never reused
Internal UUID01a0ae96-4375-761f-8efd-eb230027a781 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079690
StatusPUBLIC

Content hashes

Canonical text09bb24f6245c5db46e7efe4ff8493dfde3ae473961c1faadcad365c654a0033a
Markdown3b5ff3a8de52ddf5b3b481a0f2eb8c872db7ee5b080e5a8cc2f1b85224deb9fb
PDF
Publication paged2e50f1338881b3837ddd1f4257f0c9b6ea259e7e7625013a1bf72c62851674b
Manifest69900b7be441321476f10f66be59a48ae260b5402cfad456037245742111f12a

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
Signature2U0KbLc6/axnVJMvR/DTNyrJDIiuO5Jv7aTlZ8SddtS4AH6DE2oGPi7tr2oK81rr3burPLViE+WuwWyfW2bmCg==
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

2026-09-17T10:03:22.198112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079690
observed d2e50f1338881b3837ddd1f4257f0c9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:22.178078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079690/manifest.json
observed 69900b7be441321476f10f66be59a48a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:22.157250ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079690/publication.md
observed 3b5ff3a8de52ddf5b3b481a0f2eb8c87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:22.130899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079690/publication.txt
observed 09bb24f6245c5db46e7efe4ff8493dfd...
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.