OpenTechnical

OT-2026-000072742

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000072742) never changes.

Identity and time

Publication numberOT-2026-000072742 · never reused
Internal UUID01a0ae92-89da-7b87-9892-dcfc4fdacf1d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072742
StatusPUBLIC

Content hashes

Canonical textf1fe86cb6f6b4455d730758400f6b14ff9d5606971a8fc504b0aca570c0c3db4
Markdown7627df8b02963aa3900ef1fd85a09ecf0be9bf779ee1f1f7386dfc9e20b48616
PDF
Publication pagec823ba529873b590abd7277f8d9523d7c48924c9b37152b7d64d1de6fd9eae0e
Manifest351a0a2952e0fae8c160c230d0f205204a89d5fb1ebc7e82aac694751f4ba59a

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
SignaturevB9l1UBwX0kCW2hfvqd9+9vutX6yBFtwWJsoRAkZ5zXJCe5+GhDIsafq72leZlerWhO0Bd2SoyzRmmIPVgBvBQ==
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

2026-09-17T10:22:38.769646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072742
observed c823ba529873b590abd7277f8d9523d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:38.751997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072742/manifest.json
observed 351a0a2952e0fae8c160c230d0f20520...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:38.735199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072742/publication.md
observed 7627df8b02963aa3900ef1fd85a09ecf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:38.717382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072742/publication.txt
observed f1fe86cb6f6b4455d730758400f6b14f...
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.