OpenTechnical

OT-2026-000081361

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, pump fed, 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-2026-000081361) never changes.

Identity and time

Publication numberOT-2026-000081361 · never reused
Internal UUID01a0ae96-f375-7aec-b08e-e30b173e2a1d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081361
StatusPUBLIC

Content hashes

Canonical text73d04f6432b8e3b7b46a971c239a94e11d88649d1769fcbafa221c25036fc5fd
Markdowneb3c81b1538acdfa6c5a79e4f57788c87674772373cc99cbaba0a26ec4b5fd99
PDF
Publication pageced33aa948fddf7194fbcc5c5c0bb45da26e77fc8286a7e843826722db79412d
Manifestca2e23cfb43874dff965706386b84e54a022d20853ded3273cbf76e2097d1169

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
SignatureepjCet5E7ekyLG4EDJFFo05iy+J7g3gZ+bS+JXTsKPWafwjEaYMxGjuS7UwpY5VTJXk09s0mtANJE2cfvQDRAw==
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

2026-09-17T10:01:29.603734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081361
observed ced33aa948fddf7194fbcc5c5c0bb45d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:29.585016ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081361/manifest.json
observed ca2e23cfb43874dff965706386b84e54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:29.567002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081361/publication.md
observed eb3c81b1538acdfa6c5a79e4f57788c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:29.549205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081361/publication.txt
observed 73d04f6432b8e3b7b46a971c239a94e1...
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.