OpenTechnical

OT-2026-000077272

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000077272) never changes.

Identity and time

Publication numberOT-2026-000077272 · never reused
Internal UUID01a0ae94-f508-767a-9e5a-3dc98fb1aab7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077272
StatusPUBLIC

Content hashes

Canonical text41052434df2361d663cf7e7d7126f1a0f4840ed9e9c0d2f88b57a716ede9cec6
Markdowna0777943531e155f5aed56f6427a27083144cebb78a4dcc57d978f3f4c3c5b1c
PDF
Publication page506446db73158c3216ad09b721769d158145c1044e8bc485b76d4ca1e6b95145
Manifest0a53c3e77e0d90526bfc6486f2ee1cb321e28971f8c22b47422eb2e367d18383

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
SignaturedesyMKLs/Sgk3B4KvDrtq6BDyZhvYmxfNs6enD7rZVRw+09pLrJ6zcupp6hqzOM5Q4ieAHZqETtSYXTgNEjLAg==
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

2026-09-17T10:10:57.810692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272
observed 506446db73158c3216ad09b721769d15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:57.790104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272/manifest.json
observed 0a53c3e77e0d90526bfc6486f2ee1cb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:57.723481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272/publication.md
observed a0777943531e155f5aed56f6427a2708...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:57.533219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272/publication.txt
observed 41052434df2361d663cf7e7d7126f1a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.060659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272
observed 506446db73158c3216ad09b721769d15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.042151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272/manifest.json
observed 0a53c3e77e0d90526bfc6486f2ee1cb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:25.022645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272/publication.md
observed a0777943531e155f5aed56f6427a2708...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:24.944219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077272/publication.txt
observed 41052434df2361d663cf7e7d7126f1a0...
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.