OpenTechnical

OT-2026-000066473

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000066473) never changes.

Identity and time

Publication numberOT-2026-000066473 · never reused
Internal UUID01a0ae8e-ce40-700d-a4df-cea269283962 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066473
StatusPUBLIC

Content hashes

Canonical textfe251440cb91bb987958b6019166f7c6027254db186ddb6a885ed046a4537b2c
Markdown1d46bae45236de9933316d8cfec5d0efc5f564b77ba8e9baaec47c3b836a3dce
PDF
Publication pagedc22bfe768dd50c9b4ac15a8a0baee3d72288d7f0df7c2a10829789beb973d32
Manifestf8e02200e05f55c3be91241f74426ce526761fcf6952fff617a4cbeb5f4f9a42

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
SignatureIITTZp5AqO2d76y2II1DbFFChZe6V8zDmGB7VgXckl7BI+e2fFH4zDl/w9NAT39B7Z7faNR8wcarbuxKgWPUCw==
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

2026-09-17T10:32:43.520972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066473
observed dc22bfe768dd50c9b4ac15a8a0baee3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:43.505362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066473/manifest.json
observed f8e02200e05f55c3be91241f74426ce5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:43.489121ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066473/publication.md
observed 1d46bae45236de9933316d8cfec5d0ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:43.471468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066473/publication.txt
observed fe251440cb91bb987958b6019166f7c6...
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.