OpenTechnical

OT-2026-000091180

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, single 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-2026-000091180) never changes.

Identity and time

Publication numberOT-2026-000091180 · never reused
Internal UUID01a0ae9c-f16b-7678-8269-06bf50e97763 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091180
StatusPUBLIC

Content hashes

Canonical textd12f5b62502178cfd2b63eb6e9b2e7c30ab89a02cd36dd6a3f123b95ab4aaac6
Markdowna35f32bf61e133f9d285fd0191fa3c0ebf7966c9954bd34801701e391a2987b2
PDF
Publication pageb4eaed61dd4ac9bcb6317943e8e91ba1d7aad2781c404dcd0714050760719dc9
Manifestf809f0da1aaa5d45a4681441ebc757717f03cd15970ee85a23b5f23db006a727

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
Signatureox7SWsNgavrGSynQmMFz2IBkUs579krg85tjiMwu2R4RllQG0fYEeSohz5LVVkETMNGOjsiti/gXtVHbJ0CDDA==
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

2026-09-17T09:43:20.387277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091180
observed b4eaed61dd4ac9bcb6317943e8e91ba1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:20.369763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091180/manifest.json
observed f809f0da1aaa5d45a4681441ebc75771...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:20.352916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091180/publication.md
observed a35f32bf61e133f9d285fd0191fa3c0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:20.335451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091180/publication.txt
observed d12f5b62502178cfd2b63eb6e9b2e7c3...
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.