OpenTechnical

OT-2026-000036191

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, supply line pressure sensor, 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-2026-000036191) never changes.

Identity and time

Publication numberOT-2026-000036191 · never reused
Internal UUID01a0ae77-01cf-75c3-87ff-0db00d213923 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:23:50.134839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000036191
StatusPUBLIC

Content hashes

Canonical textc19cddaeb7fef4b1742be27f2c63a9eaa892aa6bffe4c537c41d917805eef3b3
Markdown2f716db0a830a407cb168e60512f565e0ea34f9ac2fa2d598a14e0f621f71fc2
PDF
Publication page321172389defb270fc8e143cd0863c133cd83edfcdc0e96d1b812fc66d9cd664
Manifest15eb4b92f7a88e7080bd392b478b563bb01b3e37527f8092c5eafd0d87c1dd59

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
SignatureBCZxVBzAQAGtir6Ll97d7PAf3fKe+BviHPll6H4m9exGMGpi9dD4yaCM76+vnFjHndxSQJ7MXJb0qlWZH55DCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:26:25.421147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036191
observed 321172389defb270fc8e143cd0863c13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:26:25.405162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036191/manifest.json
observed 15eb4b92f7a88e7080bd392b478b563b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:26:25.387593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036191/publication.md
observed 2f716db0a830a407cb168e60512f565e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:26:25.371450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000036191/publication.txt
observed c19cddaeb7fef4b1742be27f2c63a9ea...
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.