OpenTechnical

OT-2026-000077471

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000077471) never changes.

Identity and time

Publication numberOT-2026-000077471 · never reused
Internal UUID01a0ae94-f50a-7925-8981-938c4c1032bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077471
StatusPUBLIC

Content hashes

Canonical textd4b738eeeb3dd2664762f28e0e46f8b961658e1f1bedb7039cd3607010291531
Markdownca5470f9f814d6e5c0f4529654ba3a8d906b2fae5317201cc0f1593c652eab07
PDF
Publication page4ed447743a6f74b86f5c353ab06a01c4c518980f5c6781d7810506bee0a6780f
Manifestede55968ecc97615959b72824b654f2f8ab28f63211b7fcd4c46ec9e6c0a2218

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
Signaturej2O+CQ0sz7I73ocnwH4qJDQ0orje0s/Do+dV8XiB9DBTmR3A/yrkyADh9PdhOwk9hrYIynOBn6Pl2NEMnzs/AQ==
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

2026-09-17T10:11:04.963532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471
observed 4ed447743a6f74b86f5c353ab06a01c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:04.944959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471/manifest.json
observed ede55968ecc97615959b72824b654f2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:04.545507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471/publication.md
observed ca5470f9f814d6e5c0f4529654ba3a8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:04.526825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471/publication.txt
observed d4b738eeeb3dd2664762f28e0e46f8b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:26.900899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471
observed 4ed447743a6f74b86f5c353ab06a01c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:26.883305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471/manifest.json
observed ede55968ecc97615959b72824b654f2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:26.865523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471/publication.md
observed ca5470f9f814d6e5c0f4529654ba3a8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:26.848294ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077471/publication.txt
observed d4b738eeeb3dd2664762f28e0e46f8b9...
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.