OpenTechnical

OT-2026-000091133

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum 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-2026-000091133) never changes.

Identity and time

Publication numberOT-2026-000091133 · never reused
Internal UUID01a0ae9c-f16b-70cd-8bee-46497287c8f5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091133
StatusPUBLIC

Content hashes

Canonical textd2eff06f64b06a07a9ba72007803e811b0f6d8c38603342e1af83e50fb8209de
Markdown3e9ccb4bb5ebe43d73386340c1c36500193e17012af6881ddc8401fe6598639c
PDF
Publication pageba2976896704fc6fba5cb81c50be842af07e44205699f0353ce9038601a7932e
Manifest0a811b6914708812019139659ee34cc1522b4943c4f639e351937bdc477f59a7

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
SignaturemRFigDFTz55ed9VeQVuKjrsxILCrA8wme0FPErtbqd6p662nTGzM8cJwGe6M6lQgsh5CwcAq7rjq/hFSlybgAw==
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

2026-09-17T09:43:12.229270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091133
observed ba2976896704fc6fba5cb81c50be842a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:12.212909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091133/manifest.json
observed 0a811b6914708812019139659ee34cc1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:12.137941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091133/publication.md
observed 3e9ccb4bb5ebe43d73386340c1c36500...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:11.979207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091133/publication.txt
observed d2eff06f64b06a07a9ba72007803e811...
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.