OpenTechnical

OT-2026-000006944

Publication integrity record

Vacuum cup gripper, two zone face, common isolation valve, pump fed, contact triggered, rubber cups

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-2026-000006944) never changes.

Identity and time

Publication numberOT-2026-000006944 · never reused
Internal UUID01a0a96d-2b8b-7fb1-8856-fdb499da40bc · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:54:59.215292Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006944
StatusPUBLIC

Content hashes

Canonical textac89ed288baf6ea7e7eccc3ec408dec7c1690264e9d5ce4f6b18770a88606eda
Markdownfd2795ace7bc5df849ccab5045bebbecaaa22dbf5ee5196140d782067c6dc6a1
PDF
Publication page852699a2578e0fc29095adf04861d71027f805d3be6c55775c7b756549f904f8
Manifest068351af03630a4075c8c3422549c7322e738e6640f5bc101c386f2e1ee68b12

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
SignatureTPiVaVwtULDssiYgyk6eMZ7hrV4Ab4KrhM5eRlp5FkBvZrKP6TEuXWzi/vbmbkNRQo1+TUO6yokLE3bRaOfTCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:19.377693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006944
observed 852699a2578e0fc29095adf04861d710...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:19.243080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006944/manifest.json
observed 068351af03630a4075c8c3422549c732...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:19.229310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006944/publication.md
observed fd2795ace7bc5df849ccab5045bebbec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:19.215763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006944/publication.txt
observed ac89ed288baf6ea7e7eccc3ec408dec7...
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.