OpenTechnical

OT-2026-000006623

Publication integrity record

Vacuum cup gripper, four zone face, six outlet manifold, pump fed, contact triggered, rubber cups

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-2026-000006623) never changes.

Identity and time

Publication numberOT-2026-000006623 · never reused
Internal UUID01a0a961-b4a4-7f61-a144-216c6f1fa87e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:42:27.879928Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006623
StatusPUBLIC

Content hashes

Canonical text4d4fefd6074dd47256d5b53b8a679299726978671304ca44ad83da5037b9c298
Markdown6f3eaa962bbabb1bac5ae9011513ce277dd077b15771a6cc19d65256c2eac73e
PDF
Publication pageb8ae6adebee69d34fc95914ef05232b610d68aa4f90a3fce6888b6e732d5ef75
Manifest04b362cd3b9d5010db5ff09af656189df801b5913dcb253e5db61a3da70d5296

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
SignatureybCr8I8s/utuO+99kPlm106KoegBjaXcCvYRoUP/Khn1Y41IA+5hbRu8x/VMgA3FchXdl+AZ02zm98/sF8xUCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:24.164187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006623
observed b8ae6adebee69d34fc95914ef05232b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.150221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006623/manifest.json
observed 04b362cd3b9d5010db5ff09af656189d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:24.135065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006623/publication.md
observed 6f3eaa962bbabb1bac5ae9011513ce27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:23.994352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006623/publication.txt
observed 4d4fefd6074dd47256d5b53b8a679299...
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.