OpenTechnical

OT-2026-000005686

Publication integrity record

Porous face vacuum gripper, common isolation valve, three outlet manifold, plant vacuum fed, pressure verified

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-2026-000005686) never changes.

Identity and time

Publication numberOT-2026-000005686 · never reused
Internal UUID01a0a941-6dfe-79e6-834d-578670c694bc · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:07:12.641737Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005686
StatusPUBLIC

Content hashes

Canonical textb0248a713403240adaaba0915ef8792f38d5886b2b97b4c622e2761bdf83bbad
Markdownf986859919f776fa57d9679dc85f048741af84e4a154b6d5bed41cbfa0af7f88
PDF
Publication pagebed21a0892472387ac1478a20038580eabee438136d8d570f139b95b8ab3b60e
Manifestd79e5fb578b4569a56f5b49280e7b9a30233e8e1a3b1d8568c53aaacf80b0fd1

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
SignatureEIab48L/3/AWjZg8AiBehWzuXCq3unEj1NrSKqxVJfeaXIQCBCY2SE3B4UYbLKHrQfW6RydYLpMtL210Dro3CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:10:11.898673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005686
observed bed21a0892472387ac1478a20038580e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:11.883286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005686/manifest.json
observed d79e5fb578b4569a56f5b49280e7b9a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:11.742661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005686/publication.md
observed f986859919f776fa57d9679dc85f0487...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:11.726912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005686/publication.txt
observed b0248a713403240adaaba0915ef8792f...
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.