OpenTechnical

OT-2026-000004339

Publication integrity record

Vacuum cup gripper, four zone face, four outlet manifold, pump fed

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-2026-000004339) never changes.

Identity and time

Publication numberOT-2026-000004339 · never reused
Internal UUID01a0a914-7b7f-7dbe-9eb0-9af957b0105a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:18:06.977831Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004339
StatusPUBLIC

Content hashes

Canonical text3b1288629c0c03f3ba16583c6abb8b233518f365ffa6456b3acce2ccb0f89f47
Markdownfadcfbed3eee0b1fd1948c99d7f7294cac574c7ae4f006f2f73282c3f864e6aa
PDF
Publication pagedbb07c6a469dec9c110cecda248982e62ad53af1c1ca0f3cf979af294049952c
Manifest7a7ee2886cc8a883feedf24c7a996f22a956486fa2a569774022e165e524518d

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
SignatureFHMGiPIw/iJ9voCTeCd5V7IqRepRjhbyF/xnO9S0c1k8tg+zhviVpuSt4dY49cfPpC4Cl/I9BWDRVGfNl0IgCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:09.155093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004339
observed dbb07c6a469dec9c110cecda248982e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:09.140044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004339/manifest.json
observed 7a7ee2886cc8a883feedf24c7a996f22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:09.127158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004339/publication.md
observed fadcfbed3eee0b1fd1948c99d7f7294c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:08.985798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004339/publication.txt
observed 3b1288629c0c03f3ba16583c6abb8b23...
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.