OpenTechnical

OT-2026-000064939

Publication integrity record

Foam pad vacuum gripper, four zone face, pump fed, pressure sensor per zone, pulsed 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-2026-000064939) never changes.

Identity and time

Publication numberOT-2026-000064939 · never reused
Internal UUID01a0ae8d-debd-79cf-9d2b-a61fa8f5fb86 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:48.495161Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064939
StatusPUBLIC

Content hashes

Canonical text6ae3af3774dc5aec171c91fab7db03c4cb5f072386e37467b1cba3141485b24a
Markdown67772a69da509322669a1aa79c21e95434722f9720158e023eeeea84b7015d41
PDF
Publication pagead792ef455072e4f9f07c0cd55800fa06c376df1ccef40c317be23856691a2a9
Manifeste7efa240c3117fa588613bf4af690921c11e1df01232e49e3568bea3c379ccd0

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
SignaturenZbB7SyCuOw82u1yMFp3SZG+l9Gagp/tEsWMF7id7U4TNIYkzGd0nsLXDYoOlWTGSK1Qn457de5+SotM8tQ+BQ==
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

2026-09-17T10:35:52.647772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064939
observed ad792ef455072e4f9f07c0cd55800fa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:52.630890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064939/manifest.json
observed e7efa240c3117fa588613bf4af690921...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:52.613601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064939/publication.md
observed 67772a69da509322669a1aa79c21e954...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:52.596768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064939/publication.txt
observed 6ae3af3774dc5aec171c91fab7db03c4...
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.