OpenTechnical

OT-2026-000090622

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000090622) never changes.

Identity and time

Publication numberOT-2026-000090622 · never reused
Internal UUID01a0ae9c-7f30-7b16-b357-c0de1af9fab9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090622
StatusPUBLIC

Content hashes

Canonical texte6b7eeec7874555bbd8e0282b2f172eeec84a8b1bbd02762c25c3d34f0c52d2c
Markdown056686cd8abac5db456a34b1d445629004056f71787f85952d9ea7b250886bf5
PDF
Publication page102df633ad3443f774043b67b4783ec2413091949341ad8d01bed52de7a71386
Manifest4926d828a93f216468c5dab90908ad67f0e7c2d22c2047221db1d3efb95fd488

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
SignaturevtkgDHNds6TmSh1feW9ZlwLh0Y4lvnGENsqzxPW2V/M7q1wZUxR94wFnBr+SLt8f52vXgVrPVLzO3mQdzqUdAg==
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

2026-09-17T09:44:20.455163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090622
observed 102df633ad3443f774043b67b4783ec2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:20.439080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090622/manifest.json
observed 4926d828a93f216468c5dab90908ad67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:20.422526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090622/publication.md
observed 056686cd8abac5db456a34b1d4456290...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:20.345966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090622/publication.txt
observed e6b7eeec7874555bbd8e0282b2f172ee...
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.