OpenTechnical

OT-2026-000018923

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, plant vacuum fed, pulsed blow-off 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-2026-000018923) never changes.

Identity and time

Publication numberOT-2026-000018923 · never reused
Internal UUID01a0ae6e-d522-79ff-9955-8123c0216fd3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018923
StatusPUBLIC

Content hashes

Canonical textc8f263b3d706631e1f8cff592cc155aa824a4628e8bea0821bc5305f97e91473
Markdownb75533e0eb0c585bc963ba1845d82a87aed487bf5f50d23bc97064ef0f3d9867
PDF
Publication page1a2008ea4af0b1c689084e666fd973baa30a9de36c68ba8a12a0af856229c738
Manifest3564f1ae9495c41d7e152bacab11514c271c5325e4cd2c9aab7146c61b198da9

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
Signature3JC7APFQDsDWgQ8JpD9iGM8Ozz05AaTOORoUjMkPDW014xj6W0tx+9d0JKSSaXoXBJ1Qv+JOmaWM/+BHu3aEBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:59:35.054843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018923
observed 1a2008ea4af0b1c689084e666fd973ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:35.039095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018923/manifest.json
observed 3564f1ae9495c41d7e152bacab11514c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:35.022574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018923/publication.md
observed b75533e0eb0c585bc963ba1845d82a87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:35.005446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018923/publication.txt
observed c8f263b3d706631e1f8cff592cc155aa...
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.