OpenTechnical

OT-2026-000084380

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000084380) never changes.

Identity and time

Publication numberOT-2026-000084380 · never reused
Internal UUID01a0ae98-5b62-74f4-911e-449778151f5d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084380
StatusPUBLIC

Content hashes

Canonical text12c8d3e666fa6b745ddd9c27506cf4ddf7fdcc8d7ed4ff787619a2b495715e7a
Markdownba43835c3f05f131af4f7789c9d9b8f65ee3e4a8e170d48afe2becc306af2b92
PDF
Publication page8b3b06d7c1c4472b098db1479ffdcd791297c9e274dbc49bfacf3b6f006deef6
Manifest55911658dbaa38f09619b456530551c25b5dba279bdedfd352ddbd0261948d5d

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
SignatureaqHOKup3MXwlGBSrKJBxsMFqpqNBSMHinTDOBctW4cHlWkQaOcoo+e21ln/ThI7/uTTIELc/d+7sfA3yBbuMBA==
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

2026-09-17T09:56:19.220009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084380
observed 8b3b06d7c1c4472b098db1479ffdcd79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.202333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084380/manifest.json
observed 55911658dbaa38f09619b456530551c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.185432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084380/publication.md
observed ba43835c3f05f131af4f7789c9d9b8f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.165722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084380/publication.txt
observed 12c8d3e666fa6b745ddd9c27506cf4dd...
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.