OpenTechnical

OT-2026-000087402

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, 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-2026-000087402) never changes.

Identity and time

Publication numberOT-2026-000087402 · never reused
Internal UUID01a0ae9a-cd50-7564-b77a-c9223f7fdc79 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087402
StatusPUBLIC

Content hashes

Canonical text33a667a1fa04126e054ac748fc8fc5dd0926268749f5c5d9740bdd558d6aced4
Markdowndd640099acf24ba46f03c1a379f59187391ec94eba226154877d2dd1907119a9
PDF
Publication page7214b654d282d96c6d7a0a3e293ff386890c87bd636fe71d6be9f389e19c32f5
Manifest700822e811080f8fe7653c019f5ae18918a86596620c3bce5dd60386fcdc53c6

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
SignatureVjXKeF/5bIFcVTMnmeM8qVvCHPNk1Bn4tGfUTypDkdR8IuA6tzj4g3J7VViZ9+LUPmiWcD0Lpp7UFoKLdMGFDw==
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

2026-09-17T09:50:42.940662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087402
observed 7214b654d282d96c6d7a0a3e293ff386...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.923731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087402/manifest.json
observed 700822e811080f8fe7653c019f5ae189...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.905102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087402/publication.md
observed dd640099acf24ba46f03c1a379f59187...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.887103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087402/publication.txt
observed 33a667a1fa04126e054ac748fc8fc5dd...
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.