OpenTechnical

OT-2026-000075729

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000075729) never changes.

Identity and time

Publication numberOT-2026-000075729 · never reused
Internal UUID01a0ae94-29fe-79ee-8148-416bb3d404a3 · 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-2026-000075729
StatusPUBLIC

Content hashes

Canonical text33f8d06c3fefab6031dc36cf482234233108e0b9107c0fb6a3824753bbcd7512
Markdown941868bcda1f1b1a116984220c7860cf30c1e97dedaef8e662db6ec410eb582f
PDF
Publication pagea7ec51e286ff52f4a94ba9ea3484a4ff4c5eba7b5e73ffff675060b08c65c1e3
Manifest9b29db03323f45e9e2375eb07ff0b2eab986ec52666242c71f6946828a254c9c

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
SignatureLS+zdIbLeOXK9Eju68/hxi5C6I7Myt9AgNdS4bcL0Q3LCrcrduTokz0BpCFeL+5eaZ5OzfsSu7fuo0mAXqE4BA==
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

2026-09-17T10:14:00.762457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075729
observed a7ec51e286ff52f4a94ba9ea3484a4ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:00.742804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075729/manifest.json
observed 9b29db03323f45e9e2375eb07ff0b2ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:00.720333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075729/publication.md
observed 941868bcda1f1b1a116984220c7860cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:00.701810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075729/publication.txt
observed 33f8d06c3fefab6031dc36cf48223423...
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.