OpenTechnical

OT-2026-000056393

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000056393) never changes.

Identity and time

Publication numberOT-2026-000056393 · never reused
Internal UUID01a0ae87-4bd2-753f-a626-07c02d785189 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056393
StatusPUBLIC

Content hashes

Canonical textf81d2a865a3178313aa70f8c136044b25ca761c08693bc4035d9e3c2a6a175aa
Markdownee481faa79650aa8cf438bfe488e9f688c647c37a8e934874604c5d91d7b7bd5
PDF
Publication page968bb21d57964d1d7b8ce78803bd27bb4648adf9483e095139687d24adbf6c6c
Manifest3d622549b1802f35b7f9405ff7353e25606e86884fea86de70049def7442f571

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
SignatureWdBHZzuKq++gJFj3p6sUXGW931xu49xVD0650OwAL1PdH/kM2DGkEQw83MwPRFr/aBCQs8mewr5hOSLIwrZxAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:55.139281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056393
observed 968bb21d57964d1d7b8ce78803bd27bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.121268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056393/manifest.json
observed 3d622549b1802f35b7f9405ff7353e25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.104105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056393/publication.md
observed ee481faa79650aa8cf438bfe488e9f68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.086369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056393/publication.txt
observed f81d2a865a3178313aa70f8c136044b2...
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.