OpenTechnical

OT-2026-000022351

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pulsed 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-2026-000022351) never changes.

Identity and time

Publication numberOT-2026-000022351 · never reused
Internal UUID01a0ae6f-f4fd-7f1c-b48d-01e08dfdb1ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022351
StatusPUBLIC

Content hashes

Canonical textb1325104dbcdda4357a257c7658c68ef690e5a2ae2682539735848652538578a
Markdown9fece261f242b7bb7668b477aeb2f2a6d5aa5f2407f769f13e3218f6636556d2
PDF
Publication page85e5396ae1d7ba7c3be2875c2f3e792aba0da2f468197c92e36de69977ab1184
Manifest850296e4603b15f2f13001e3a4c1ce8e375e56980f682f72d7188b18486f82d8

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
Signature+P+JvXR3Ao1zUtIH5FFri0TumUZhZdhpWBirS/PM39t/gBEMRw8IPhoeb4AMbhznt4h6CFxzBwM+mSwu8fyzCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:53:42.986070ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022351
observed 85e5396ae1d7ba7c3be2875c2f3e792a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:42.970139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022351/manifest.json
observed 850296e4603b15f2f13001e3a4c1ce8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:42.953603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022351/publication.md
observed 9fece261f242b7bb7668b477aeb2f2a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:42.935176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022351/publication.txt
observed b1325104dbcdda4357a257c7658c68ef...
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.