OpenTechnical

OT-2026-000072531

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, two stage ejector, 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-2026-000072531) never changes.

Identity and time

Publication numberOT-2026-000072531 · never reused
Internal UUID01a0ae92-89d8-7f52-8910-6f4b79d1912d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072531
StatusPUBLIC

Content hashes

Canonical texta6a76de344770a22eefbc635256857bbd72dc688fa3bde81981f3b631bfb4867
Markdownf7fb56502e53ebef0bba3fdad2f848ab35512633307a56252ec181b7d50bf2dc
PDF
Publication page25e9f438208e376484a2a26abc8ebfeab5ecda9cfab2742f357be63c02b9eecd
Manifest745e2d4325a75f714c238a61edbb15b0aa17e6c19673252cf2545f013c652fe8

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
Signature+Ra58VqDmQ8bGnOrX6cUmiu6A/gNxKRjGdqZ2hkMCKj4H+JExV42nKvvucHhNCjNGraujQZMQ81WCb0CgdQvDw==
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

2026-09-17T10:22:21.802172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072531
observed 25e9f438208e376484a2a26abc8ebfea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:21.786571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072531/manifest.json
observed 745e2d4325a75f714c238a61edbb15b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:21.769464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072531/publication.md
observed f7fb56502e53ebef0bba3fdad2f848ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:21.752375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072531/publication.txt
observed a6a76de344770a22eefbc635256857bb...
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.