OpenTechnical

OT-2026-000064021

Publication integrity record

Single cup vacuum gripper, 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-2026-000064021) never changes.

Identity and time

Publication numberOT-2026-000064021 · never reused
Internal UUID01a0ae8d-53bc-7907-8ec8-e3fe16608895 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:12.763906Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064021
StatusPUBLIC

Content hashes

Canonical textcb4b81ec205ca9481fff62a45e4e3bafd4c0246dc57c134de61ecb0f7fc5760a
Markdownac15979d248545f167c0c4a5b9f6d755663cea135d02c9b95ce36bd88828da21
PDF
Publication pagef6c07f6fa740835fd90da30381ded38a3d68944eca165ae2c2f385b157b765c0
Manifest9fde12f4564e29247b40d0fdc202d173c845bda54cd33f99352924afd57a4ff6

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
SignatureiojcliVJd7W/6xukAo9cTJ9/JYjBULRbixrfkOiF4bY9B/2t2gmzqZZBNddjZuuZmaVgWZpQ7q+1ftx1sRn0AQ==
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

2026-09-17T10:37:06.267619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064021
observed f6c07f6fa740835fd90da30381ded38a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:06.249930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064021/manifest.json
observed 9fde12f4564e29247b40d0fdc202d173...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:06.232052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064021/publication.md
observed ac15979d248545f167c0c4a5b9f6d755...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:06.213649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064021/publication.txt
observed cb4b81ec205ca9481fff62a45e4e3baf...
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.