OpenTechnical

OT-2026-000003536

Publication integrity record

Porous face vacuum gripper, common isolation valve, four outlet manifold, three stage ejector

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-2026-000003536) never changes.

Identity and time

Publication numberOT-2026-000003536 · never reused
Internal UUID01a0a90a-4e82-75dd-8360-cf1cc9260817 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:00.101708Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003536
StatusPUBLIC

Content hashes

Canonical texted6d78416f610a82bb25ec737794092cff5edeb7a6de8b4a112143a6a2dfcc52
Markdown80274d5f13fcd1cf4593f281425bf62c8935d08e48d76dc6c23851359c1ab3ee
PDF
Publication page6fe7de16bdb0230167b13ac0de9fc423228387c371172327240bda8df39492b1
Manifestb3e41d6ce3d2f7a365477dafc6fb0715b592e6f47bd76e81f839575f4832c2b3

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
SignatureUkrCRx+hfpNwhaM+ul/Z4MbD5KT/xWZ4lZscAo5n7UGJ/VU0R91XHlZrwPHzWJNfjWF7lkDdkTIxgVnmoIarDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:07:02Z
batch OT-TS-2026-W38-008 · RFC 3161 token · inclusion proof
root e9da7eb1c397f1749e5915c5a39dbbcf...

Independent retrieval

2026-09-16T08:50:34.189366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003536
observed 6fe7de16bdb0230167b13ac0de9fc423...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.173475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003536/manifest.json
observed b3e41d6ce3d2f7a365477dafc6fb0715...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.157182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003536/publication.md
observed 80274d5f13fcd1cf4593f281425bf62c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.140537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003536/publication.txt
observed ed6d78416f610a82bb25ec737794092c...
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.