OpenTechnical

OT-2026-000073212

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump 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-2026-000073212) never changes.

Identity and time

Publication numberOT-2026-000073212 · never reused
Internal UUID01a0ae92-efb6-70f7-94f4-ecfd5506572e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073212
StatusPUBLIC

Content hashes

Canonical texte964abd897f1dcaa07e46ec20d9ce7ad209f22d0ce75ce5f1f7c4912add9c225
Markdown9b2276443ff62720826c49633847e55612311df7637af2146a9afab7f30b4af0
PDF
Publication page6c6c5aa90b452b27018ea6d90841f1c9515958269675664f697aa5831951ab69
Manifest62634143b5161c9fb7ca5e3bfdd950f9cbad838288ca61a238607423e5a3b469

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
SignatureePMRj8909bFOXfg66x1dhgpehJ4brXVbjLHFSjeMRwpmHIYIjirSc6jn+5sG6AthnAHUrWvX7PNDSlKIN+rRBA==
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

2026-09-17T10:21:11.047147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073212
observed 6c6c5aa90b452b27018ea6d90841f1c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:11.027165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073212/manifest.json
observed 62634143b5161c9fb7ca5e3bfdd950f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:11.008489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073212/publication.md
observed 9b2276443ff62720826c49633847e556...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:10.988702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073212/publication.txt
observed e964abd897f1dcaa07e46ec20d9ce7ad...
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.