OpenTechnical

OT-2026-000067529

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, vented after 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-2026-000067529) never changes.

Identity and time

Publication numberOT-2026-000067529 · never reused
Internal UUID01a0ae8f-6bda-747c-ba5b-20f3a82c9c6f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067529
StatusPUBLIC

Content hashes

Canonical text7701a749e2dcb20a223265bcf7aec03303dfe30dad386ee917a175db28801b94
Markdown8814b0226a23a70fd752fb36c50b82870f315d1d49ac5650b0d33ec19adb1f95
PDF
Publication page372a0ce21577dc62a2531fd0fbceb309ed3760ef1eb5e96e959c1da890919ade
Manifestec335543d4c03205d9a194fd5dae984f1d7c420c3854266d6d5da6b9d0f39222

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
SignaturewNX8Z3f04+7x3GYrqPCk2ZuRhUSqtzQbgUo3CVflGvUQXnMWjgiFS8Ck7N1UErWzE9GnhGrGFeJfuZbUV/OEAQ==
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

2026-09-17T10:31:49.871802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067529
observed 372a0ce21577dc62a2531fd0fbceb309...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:49.854226ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067529/manifest.json
observed ec335543d4c03205d9a194fd5dae984f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:49.839267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067529/publication.md
observed 8814b0226a23a70fd752fb36c50b8287...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:49.822919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067529/publication.txt
observed 7701a749e2dcb20a223265bcf7aec033...
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.