OpenTechnical

OT-2026-000090275

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three stage ejector, pressure sensor per zone, sustained 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-2026-000090275) never changes.

Identity and time

Publication numberOT-2026-000090275 · never reused
Internal UUID01a0ae9c-4290-7dab-a9df-3115b6ef9b57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090275
StatusPUBLIC

Content hashes

Canonical text899f8d1e1bf4af73ce11fce4d5d2fc70bebe33e1154f3d3e5f1f45bf82d37b1c
Markdown3cec940b1959853fe4a15fd3edffbd70452b34c20d3b22a67c98bf649935fd9b
PDF
Publication page17f0891b541a67b4144c9b807c6f61de32c04c2668dedb27ccf0bbefd191432d
Manifestc9453e3ceb0e96a3bbbb1b5a98068d0738ac65161d04fe97c4d8ff968ef79911

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
Signaturerp9Zz9vn+Jzjxp0A3spUyGAjKckNoOLktdSmmmRasx59duEHtWOO6i/tB6BjPwN6DQeMppGcAqGHoqWdIlb0Dg==
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

2026-09-17T09:46:21.433362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090275
observed 17f0891b541a67b4144c9b807c6f61de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.415495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090275/manifest.json
observed c9453e3ceb0e96a3bbbb1b5a98068d07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.397443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090275/publication.md
observed 3cec940b1959853fe4a15fd3edffbd70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.379893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090275/publication.txt
observed 899f8d1e1bf4af73ce11fce4d5d2fc70...
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.