OpenTechnical

OT-2026-000091855

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, two stage ejector, 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-2026-000091855) never changes.

Identity and time

Publication numberOT-2026-000091855 · never reused
Internal UUID01a0ae9d-43ba-7ada-956d-3df4ad9e902d · 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-2026-000091855
StatusPUBLIC

Content hashes

Canonical textc4cd041d36e48ef79d34fb01b37f5e23b714bc6ed88703f5c597b06005e632be
Markdown38eea7963171444d52391ab5e9b1feaa8269e7eb1148c69f59cd72dc4d9cf285
PDF
Publication page34b2347a16fa36150dd663b4a9cf5c409eee55e82b325f642a7b2b93d4d58067
Manifeste49ced4fe907395960f140ac5d31fcbe9f6fc48cf0c82a84cacdc9db387d2d6a

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
SignatureE8anfJFz0NMYU6PQGbr8JTuKa4W/m+JyEhP7A2pD+p9+jD0odILW5uC6KtCt7nt1Zzsdlye9f/8hskBqctXbCw==
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

2026-09-17T09:42:45.973570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091855
observed 34b2347a16fa36150dd663b4a9cf5c40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:45.956258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091855/manifest.json
observed e49ced4fe907395960f140ac5d31fcbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:45.939387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091855/publication.md
observed 38eea7963171444d52391ab5e9b1feaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:45.922385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091855/publication.txt
observed c4cd041d36e48ef79d34fb01b37f5e23...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent