OpenTechnical

OT-2026-000075719

Publication integrity record

Foam pad vacuum gripper, two zone face, 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-2026-000075719) never changes.

Identity and time

Publication numberOT-2026-000075719 · never reused
Internal UUID01a0ae94-29fd-737f-944e-c9a117cfd8ce · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075719
StatusPUBLIC

Content hashes

Canonical text8b6b5bd8eda97ea8eaa388dbf0a985b357dc75fbf5b82b86b51b1816fcb1a7f2
Markdown7dc7b08e614019bc0ba3f69a553d63864a386ed3be1305256a4342e1f747bf84
PDF
Publication page80e7d303eed78ea4b292cc76b50d0b78cde3de7a6162c85ec149037ccd4b21e5
Manifest7c9593e4d0466495d0f8cd40baf98933aa64a545686c12a1ef4178a48ab98106

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
Signaturegij+imooGuSIMwz64GLf42vuLfjBgAMskBwXowjfX3v+uTqWw1YlIDG0dTkbtin73alPdImXxs3arglcTXgEDA==
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

2026-09-17T10:13:57.978187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075719
observed 80e7d303eed78ea4b292cc76b50d0b78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:57.828175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075719/manifest.json
observed 7c9593e4d0466495d0f8cd40baf98933...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:57.805514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075719/publication.md
observed 7dc7b08e614019bc0ba3f69a553d6386...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:57.786941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075719/publication.txt
observed 8b6b5bd8eda97ea8eaa388dbf0a985b3...
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.