OpenTechnical

OT-2026-000076417

Publication integrity record

Foam pad 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-2026-000076417) never changes.

Identity and time

Publication numberOT-2026-000076417 · never reused
Internal UUID01a0ae94-6a70-7abf-b41e-137a44636ebf · 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-2026-000076417
StatusPUBLIC

Content hashes

Canonical text152ba4199dd5249b475a38663e435913802cc38f2afed7337c120e9e1d9b0556
Markdown6ac5e94a44d5ee1187b138da1f1b6a5675f7f4123a2abe4ff28536b6a02f0d9e
PDF
Publication paged19f22bc6b80f577b6a2f046716421e33df29914c81941334e0d68c88c64d79b
Manifestfa6afb67b1af7d981c82dd2c361b9355e77967dcdd2e9c8252e475d1af61aebd

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
Signaturetz3S70nTYIsS/jbwSHR5ZNl7svDMw2j4WE24iHSRU8bXFyiFJHxyqdQLLhEcpsOgSE05DI4lRApWi+CQWqkRDQ==
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

2026-09-17T10:12:23.295898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076417
observed d19f22bc6b80f577b6a2f046716421e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:23.273519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076417/manifest.json
observed fa6afb67b1af7d981c82dd2c361b9355...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:23.251084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076417/publication.md
observed 6ac5e94a44d5ee1187b138da1f1b6a56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:22.800053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076417/publication.txt
observed 152ba4199dd5249b475a38663e435913...
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.