OpenTechnical

OT-2026-000091139

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-2026-000091139) never changes.

Identity and time

Publication numberOT-2026-000091139 · never reused
Internal UUID01a0ae9c-f16b-7779-b76c-5084e7ca9102 · 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-2026-000091139
StatusPUBLIC

Content hashes

Canonical text1b77a728aaec029278755e0b0f61ce26a0578c452c7438663673613645d0eb4a
Markdownde97863495cf1c1ef5da9c0f11527093fb720d6e7731856cb2905b47ad517c8a
PDF
Publication page34132646ad6a5bb761d5c2012fb095b8c10d1a0e9f13df7f92c1e240515a6b11
Manifestd832264d090883ae1ce1a60177e9d2f3812289dd57e25db696bf32e36290af46

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
Signature3bACHDn9YAt5wj/E+nyFPRtZPR1nNObSh/nG9uzBMClD9THlR6+42uoDTauAvQxDk5sbCguBYQFgirvQc5RrAw==
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

2026-09-17T09:43:12.355354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091139
observed 34132646ad6a5bb761d5c2012fb095b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:12.337642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091139/manifest.json
observed d832264d090883ae1ce1a60177e9d2f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:12.317863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091139/publication.md
observed de97863495cf1c1ef5da9c0f11527093...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:12.300164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091139/publication.txt
observed 1b77a728aaec029278755e0b0f61ce26...
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.