OpenTechnical

OT-2026-000075970

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, 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-2026-000075970) never changes.

Identity and time

Publication numberOT-2026-000075970 · never reused
Internal UUID01a0ae94-2a00-7581-ac97-b38ddafcd555 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075970
StatusPUBLIC

Content hashes

Canonical text88e1dd0609cd3e71479fff4c565b04b7009fe920a2f18df68d9f9e292686bb51
Markdownce09e14a27691f189bb3a3571fb8469a89e15fc4d98b8d25d6c52c84396c33cb
PDF
Publication page662a0325af04e12757471cb399c938935adbe9175c2682725dd36beda7508dc9
Manifest8b5453a7f7d458d128c5c5d67650d5b5f30646523964ced79634fc547ebcbc79

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
Signature3wgE5ZyLOrQ0qB2a2QxjIXL8f8YtUQPQ3y83ClYztm6kxWO+ZBv8Kae4IQVrcbCEKBnbzvV7SxfFkyGHlcwTBg==
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

2026-09-17T10:20:12.561617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970
observed 662a0325af04e12757471cb399c93893...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:12.543593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970/manifest.json
observed 8b5453a7f7d458d128c5c5d67650d5b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:12.524696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970/publication.md
observed ce09e14a27691f189bb3a3571fb8469a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:12.503935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970/publication.txt
observed 88e1dd0609cd3e71479fff4c565b04b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:15:59.048727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970
observed 662a0325af04e12757471cb399c93893...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:15:59.011463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970/manifest.json
observed 8b5453a7f7d458d128c5c5d67650d5b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:15:58.992207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970/publication.md
observed ce09e14a27691f189bb3a3571fb8469a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:15:58.973655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075970/publication.txt
observed 88e1dd0609cd3e71479fff4c565b04b7...
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.