OpenTechnical

OT-2026-000090334

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, sustained blow-off 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-2026-000090334) never changes.

Identity and time

Publication numberOT-2026-000090334 · never reused
Internal UUID01a0ae9c-7f2c-73b5-b48e-2bec4518836f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090334
StatusPUBLIC

Content hashes

Canonical textb8f0c53360f2c10a2d2b8db0eda2b89633917dea1e35a81b2f2c0aeebd48e44b
Markdown28e6312d7472fe52973539d0de8a439821225d965be1feb8d0455bd35b0d15cf
PDF
Publication pageb62e35f08bf1525e3c750d896b420f07d5df7d0924094f20c093fc25d8566ae0
Manifeste01dc22b2115a28d5586eff07e16b338a458aab71774f427017af3328f1a5281

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
Signatureey6luhWrkOAZshw1NOuQnW2kuNTH0Y+swsNa5UlcQ7cmMnheHts5anAJo2o62IHdxi3HDM0EYYXAi9jd/fbQDw==
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

2026-09-17T09:44:25.362427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090334
observed b62e35f08bf1525e3c750d896b420f07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.346085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090334/manifest.json
observed e01dc22b2115a28d5586eff07e16b338...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.327396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090334/publication.md
observed 28e6312d7472fe52973539d0de8a4398...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.310409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090334/publication.txt
observed b8f0c53360f2c10a2d2b8db0eda2b896...
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.