OpenTechnical

OT-2026-000078458

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, vented after 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-2026-000078458) never changes.

Identity and time

Publication numberOT-2026-000078458 · never reused
Internal UUID01a0ae95-7c28-7724-971a-3acbc9144d5c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078458
StatusPUBLIC

Content hashes

Canonical text9950b2e0c1d33386fb77192feea445c8322d133f55b2fc8ae599db3eabf0d147
Markdown1e8e061577c8b48daaa122550b8b8734273545cbb840a93ba39fcb112f49483b
PDF
Publication page1b1e310cebf0369f4b77087ef69468eb384ee3fd85d35504b0340227b68be29a
Manifest3930361f408985cc3c115e6be83665f4eea80465d67899363bf75f2e6b2ea90e

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
Signature6Ou8/sjUEeSETuVNKloD9eVrpQZmWqPI9ebBFfV7W0qXUYIzM/eCsXHbMHy1tIcewaGvt41TWWFo7UBoLM/nAw==
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

2026-09-17T10:06:11.740232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078458
observed 1b1e310cebf0369f4b77087ef69468eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:11.721980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078458/manifest.json
observed 3930361f408985cc3c115e6be83665f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:11.702798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078458/publication.md
observed 1e8e061577c8b48daaa122550b8b8734...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:11.685262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078458/publication.txt
observed 9950b2e0c1d33386fb77192feea445c8...
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.