OpenTechnical

OT-2026-000090294

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000090294) never changes.

Identity and time

Publication numberOT-2026-000090294 · never reused
Internal UUID01a0ae9c-4290-72a0-930b-06085a876778 · 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-2026-000090294
StatusPUBLIC

Content hashes

Canonical texte82063d5eb1c91f2e00f18d0a82299c9ec7eb2faccdfb44af8d500ef4a99387a
Markdown6397fee65eeb6f1c277bb9410d2aeff8885ce9478ae3a4be9a7e098bf8edf125
PDF
Publication page37513a2dff2569d200f0e8eb07bdd731e462ed0e238d68633686fb7c1a4efc12
Manifestb87e59208035f9172bf47fc279b759ef7994fc7b8c0c833642465af7f6b05c70

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
SignaturewnBAYrq/iYBgDaCjrHDDSAncQMGyriEk9XP1N2S52k3u8tSRATHXAdpeRFZJPahnYPqV+d4Hov9hFbz/IgsGAw==
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

2026-09-17T09:46:22.812785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090294
observed 37513a2dff2569d200f0e8eb07bdd731...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.793027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090294/manifest.json
observed b87e59208035f9172bf47fc279b759ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.771051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090294/publication.md
observed 6397fee65eeb6f1c277bb9410d2aeff8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.747843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090294/publication.txt
observed e82063d5eb1c91f2e00f18d0a82299c9...
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.