OpenTechnical

OT-2026-000007399

Publication integrity record

Vacuum cup gripper, common isolation valve, four outlet manifold, plant vacuum fed, rubber cups

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-2026-000007399) never changes.

Identity and time

Publication numberOT-2026-000007399 · never reused
Internal UUID01a0a97d-60e4-7afd-9e97-cf5487a9f6ff · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:12:41.446845Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007399
StatusPUBLIC

Content hashes

Canonical text6ee242e3363b03b2510f281a8a6d104c689e73b121c8d2fae945f38ebf88d880
Markdowna3b510039df1a387bd15a3d8cd80da7fb13f56fd77685de6ccac972981d3dd3c
PDF
Publication page8e10e8165a3b689472224358efb31f05231651bb0592937ea398a71fce6e3e33
Manifest9f1147dd374be8178234cd416c8ceb59692f682e23fc6b351c6590de2ae92919

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
SignatureLbmcr9QOTbHvJoDKO/975cwDAK04erT3va/odNqXFKS/Ke1fEc5LqWUhvVbopoLlNOoLqnd+lRGiRIlwNdVXDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:07.576138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007399
observed 8e10e8165a3b689472224358efb31f05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.561673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007399/manifest.json
observed 9f1147dd374be8178234cd416c8ceb59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.547016ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007399/publication.md
observed a3b510039df1a387bd15a3d8cd80da7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:07.531783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007399/publication.txt
observed 6ee242e3363b03b2510f281a8a6d104c...
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.