OpenTechnical

OT-2026-000091158

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump 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-2026-000091158) never changes.

Identity and time

Publication numberOT-2026-000091158 · never reused
Internal UUID01a0ae9c-f16b-781b-8d95-0a8f1332b8de · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091158
StatusPUBLIC

Content hashes

Canonical text7a327f08ee9d342e4d95f86b5ec64ce62d30c6e3ca1f0cae5c147559eeed48c3
Markdown8c793c2d31acbf72a92fd070e3e0047dc38fed128e61352fb00a26455191aa6f
PDF
Publication pagee3187fc7dafe70b9598537c2394557455eca399e52f800257e429bd3bef036ff
Manifestaad63e89c56a18e95538bf78995848edf146a781b56734b63de066b7ec4e2889

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
SignatureGCJ/j3zeVTexco7I4a4EU4R+7ljjdrdqVn14oWJ11tKRrk+6sXwVGm5gL5xNEEtcRyGZhlfx1yi8GXa0Do6FDg==
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

2026-09-17T09:43:18.721365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091158
observed e3187fc7dafe70b9598537c239455745...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.704712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091158/manifest.json
observed aad63e89c56a18e95538bf78995848ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.688069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091158/publication.md
observed 8c793c2d31acbf72a92fd070e3e0047d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.670573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091158/publication.txt
observed 7a327f08ee9d342e4d95f86b5ec64ce6...
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.