OpenTechnical

OT-2026-000076819

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump 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-2026-000076819) never changes.

Identity and time

Publication numberOT-2026-000076819 · never reused
Internal UUID01a0ae94-b070-73bf-8152-dfb6e24e5650 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076819
StatusPUBLIC

Content hashes

Canonical text353e1cc64dbf800c72cfd3b606e4f18685e045415fbb24ae6b07c20d9da4bb3e
Markdown9b195fb09262df6d54ca648d99ed551244ddd677a8ab5f99075df3af8c321603
PDF
Publication page6f25ba2b8541ab52bea0e59733b259b20f71e9b963b07e9f475eca6d645a33fc
Manifestb9a044bb94fc71c77eecb4caf4026b98185e8752e2946118bda70fe71b6daa44

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
SignaturegP7woDo+M8LTIw89Wf7Vnv5N1kg98EgdA0ouA8g15D+HHcQOnl8jI7cdBxfd9A0rq0D99lG23d7cMqDJSuJKCw==
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

2026-09-17T10:09:41.706762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076819
observed 6f25ba2b8541ab52bea0e59733b259b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:41.688422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076819/manifest.json
observed b9a044bb94fc71c77eecb4caf4026b98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:41.670744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076819/publication.md
observed 9b195fb09262df6d54ca648d99ed5512...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:41.650905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076819/publication.txt
observed 353e1cc64dbf800c72cfd3b606e4f186...
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.