OpenTechnical

OT-2026-000091870

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091870) never changes.

Identity and time

Publication numberOT-2026-000091870 · never reused
Internal UUID01a0ae9d-43ba-703d-b5d9-39faad7cfa0d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091870
StatusPUBLIC

Content hashes

Canonical textfd725c6ad3fc158f2b8dbd4def9f2c10a5ec8074ed69206a408e1d0ab78760c1
Markdownbae7855ad72b97915524e60a555825f7cef5008dd94ddaef655f8b5ec2d7d63e
PDF
Publication page872942c1569182300bc47f0461c95f9a1a97d84e9601fd4263290baffed71cda
Manifest0a0809b9b2e3e140c959b749e12ee6cc17d997b87e0795584bbbeaaedd78a996

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
Signaturez5+92QPyNrp3wAc3y1PgEjOXbjLkB+lZs5p+z/gvBaJtR+P2pqcAME1emxtFSL1+WBLaDI/6fHcJXn43ZWf0Bg==
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

2026-09-17T09:42:47.751460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091870
observed 872942c1569182300bc47f0461c95f9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:47.734767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091870/manifest.json
observed 0a0809b9b2e3e140c959b749e12ee6cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:47.718057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091870/publication.md
observed bae7855ad72b97915524e60a555825f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:47.700658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091870/publication.txt
observed fd725c6ad3fc158f2b8dbd4def9f2c10...
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.