OpenTechnical

OT-2026-000076423

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000076423) never changes.

Identity and time

Publication numberOT-2026-000076423 · never reused
Internal UUID01a0ae94-6a70-7b4b-b570-60ccb0fea4d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076423
StatusPUBLIC

Content hashes

Canonical texta2760b628a4f5b68599830bf7e62008e626393af2d9af106e45cefcdb0e02bbd
Markdown0f66810eca3eb2482420deba8e0f717db4dae2f8be391ea9be2a70f61a572b46
PDF
Publication page11d434bef989aaa3d7bf6f2de6bac118d0b2ca7ede7ad1b4351541aac27cb3fd
Manifest0d4b8011ebffad9ed5f362a80c77c1c9de60e496ac44258dbdc90cd1ae22dc70

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
Signature4WZFF5p6vT15xGCWvxGAY2chfNIBCwzkXQxLSiYvArucG2WZRWDZUne3nyZ7OM9NcMOcsB4zGfjmQr5exW16Cw==
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

2026-09-17T10:12:24.525124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076423
observed 11d434bef989aaa3d7bf6f2de6bac118...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:24.505089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076423/manifest.json
observed 0d4b8011ebffad9ed5f362a80c77c1c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:24.487397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076423/publication.md
observed 0f66810eca3eb2482420deba8e0f717d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:24.468363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076423/publication.txt
observed a2760b628a4f5b68599830bf7e62008e...
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.