OpenTechnical

OT-2026-000081558

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000081558) never changes.

Identity and time

Publication numberOT-2026-000081558 · never reused
Internal UUID01a0ae97-0f71-7226-a36f-05ce74d8da11 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081558
StatusPUBLIC

Content hashes

Canonical text14864a4ac0bf2d48b6d8f63d61b10d6004e94436f096d4b56c0fcad6d91feab1
Markdown95164138add11fed54dd13ac7ca0445be6696d936c60e9a02fe4d3197019002c
PDF
Publication pagea304d34cb919a3fa894dc3a30f630b9935e2fc0cd118a01951b3068c751fbb6e
Manifest81cb4646fefb0f12847be2d80553b94245509bf553ffa186ee501dad1e4619d0

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
SignatureLAU+RlumCYbOB/KomZebzGq3ybYE7WPncQmzmNeCb48oQfc67cZvVN8Zn89QRT78FDjOcwzyCsiriP4hdO8jDg==
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

2026-09-17T09:59:35.133460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081558
observed a304d34cb919a3fa894dc3a30f630b99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:35.116658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081558/manifest.json
observed 81cb4646fefb0f12847be2d80553b942...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:35.099573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081558/publication.md
observed 95164138add11fed54dd13ac7ca0445b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:35.081823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081558/publication.txt
observed 14864a4ac0bf2d48b6d8f63d61b10d60...
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.