OpenTechnical

OT-2026-000091028

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000091028) never changes.

Identity and time

Publication numberOT-2026-000091028 · never reused
Internal UUID01a0ae9c-c012-7099-90bf-59d90773345a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091028
StatusPUBLIC

Content hashes

Canonical text9c0d55b12ef829ccc81ebc5c68eac363f88993117224b5a3a80ecdb1319ef570
Markdown1cfba43586f4920bc0c554d2f2d3bfd8ee22e2cb3520818552d93d3f41cf6cee
PDF
Publication pagec1765236b93ab453f55febd22d28e6e81214bd5913f8f9f7638afdef0d1f899c
Manifest8599c0666adb163eebfd75276611af3087d49e695bb6389338ded6960f136e91

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
SignatureAqIQJ9ZHFTdXl4iFUinoMCsCS2/dNfp6358Hboj+u7zTsTHaoiTsgt7+PRF7SfoczOdBH+GIeOA7Wte1Bl/hDg==
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

2026-09-17T09:44:16.241786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091028
observed c1765236b93ab453f55febd22d28e6e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.224757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091028/manifest.json
observed 8599c0666adb163eebfd75276611af30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.206283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091028/publication.md
observed 1cfba43586f4920bc0c554d2f2d3bfd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.187508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091028/publication.txt
observed 9c0d55b12ef829ccc81ebc5c68eac363...
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.