OpenTechnical

OT-2026-000081748

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000081748) never changes.

Identity and time

Publication numberOT-2026-000081748 · never reused
Internal UUID01a0ae97-0f74-7dd1-a27f-e2f43afa393b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081748
StatusPUBLIC

Content hashes

Canonical text43e582118f3408c2b36167b799ff29b0d9c410566dae3ad28cfc89e56448dfe1
Markdownc7e3d0db5c607f0e3156cfa10d6c8940176e76098cc472cbbb858ff5f129ba93
PDF
Publication page11066819ec043fbedd92716a170d18056d7b7698c6fd87280e95eb34cd841699
Manifest9b97ffd55156910218406263849071b06bab744b7204d0a41050925594dd9bf6

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
Signature3Ww/GjoDvDWzOSccjdI1KJ5Td/+Be1Nw3mIBYPrLB/SAZF19qve3L2XAw35JtrIyXo+f/5zWzV1tIJzQhltABw==
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

2026-09-17T09:59:49.989442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081748
observed 11066819ec043fbedd92716a170d1805...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.969647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081748/manifest.json
observed 9b97ffd55156910218406263849071b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.951063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081748/publication.md
observed c7e3d0db5c607f0e3156cfa10d6c8940...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:49.932111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081748/publication.txt
observed 43e582118f3408c2b36167b799ff29b0...
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.