OpenTechnical

OT-2026-000076807

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-2026-000076807) never changes.

Identity and time

Publication numberOT-2026-000076807 · never reused
Internal UUID01a0ae94-b070-715e-984e-58c8fd563b53 · 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-2026-000076807
StatusPUBLIC

Content hashes

Canonical textc2c18c812a2ec037cb7a471d4d3ead9259bcacb6156894960b593134a29f5e13
Markdown8d643461cefdb84c20ee8d38dce1696794601a1703debd1cc7acb96dd30dd1d3
PDF
Publication page093680cea89d3d5dfdfd8ed68a8c6ccb7559d3f291fc8fe70c691c053f010a92
Manifest3cfd5f529c88b5c1f19abbc35e7d43e3bc9260478932f7289750b2d35809244e

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
SignaturejQUrgoeKaEkAIJJHY58xAuIJCSJqbXsC7SD0qxd4yDhO+NaExllEBlJXKiIHVVCsJMGIDtwjWXVCWzlZf/AKAA==
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

2026-09-17T10:09:40.516222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076807
observed 093680cea89d3d5dfdfd8ed68a8c6ccb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:40.496941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076807/manifest.json
observed 3cfd5f529c88b5c1f19abbc35e7d43e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:40.474702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076807/publication.md
observed 8d643461cefdb84c20ee8d38dce16967...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:40.453552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076807/publication.txt
observed c2c18c812a2ec037cb7a471d4d3ead92...
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.