OpenTechnical

OT-2026-000072436

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, vented 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-2026-000072436) never changes.

Identity and time

Publication numberOT-2026-000072436 · never reused
Internal UUID01a0ae92-89d7-728e-95ff-a531cf508b0a · 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-2026-000072436
StatusPUBLIC

Content hashes

Canonical text5e2f37c39cebfdc51948d333cf3533c850fb6fd8fca75150591e8d21071c183d
Markdowncded912cb3bf3995457f0915bbaf763e40a7db421214a85c2578757fd46dbbb1
PDF
Publication page44ecd0ea88828a366fc8717ca24a8d872313a75d0d4ccab234e54035fd610726
Manifest59e2783ce4edae5b9f63538af486709d08a36f15b7ed1d639a47403007adefeb

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
SignatureAEandvx5dgbjG6I0H4KHlobJaKpFicP2cvijpszEPxgJkxVtIlvCOMuOmmvG6ByiBBq9xoA6uEUj1y6bFKTZDA==
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

2026-09-17T10:22:15.150145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072436
observed 44ecd0ea88828a366fc8717ca24a8d87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.131736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072436/manifest.json
observed 59e2783ce4edae5b9f63538af486709d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.115174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072436/publication.md
observed cded912cb3bf3995457f0915bbaf763e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.097907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072436/publication.txt
observed 5e2f37c39cebfdc51948d333cf3533c8...
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.