OpenTechnical

OT-2026-000064249

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, supply line 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-2026-000064249) never changes.

Identity and time

Publication numberOT-2026-000064249 · never reused
Internal UUID01a0ae8d-a460-7193-b2ce-ceb8714c1c02 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:33.392114Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064249
StatusPUBLIC

Content hashes

Canonical textcf1ff2ad85cd91c9bcad960c14c19b158893993fd0abdc951d14fe8372994238
Markdownf0c7e100d15148238a2c756fd4e0df3a56514c9314a6c01da14955045b07527c
PDF
Publication pagef340ff6d6af8446173326f2f2fe146d90885216875ae1cf966a70c9c84d508ed
Manifest8f21ad000684648910e34fdf1b8b28c7f683e6d81c23f473b542de219dd77c5c

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
Signatures1vt+fH2YVGDdbRcojTsPAOXpdOH3VvUZ7OIVThqKwTBBPJ8R5fmE4JrKaeYUvziFCLTEABNQHoRS6kcDBLcAA==
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

2026-09-17T10:36:22.781323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064249
observed f340ff6d6af8446173326f2f2fe146d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:22.763693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064249/manifest.json
observed 8f21ad000684648910e34fdf1b8b28c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:22.746469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064249/publication.md
observed f0c7e100d15148238a2c756fd4e0df3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:22.728326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064249/publication.txt
observed cf1ff2ad85cd91c9bcad960c14c19b15...
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.