OpenTechnical

OT-2026-000091990

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump 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-2026-000091990) never changes.

Identity and time

Publication numberOT-2026-000091990 · never reused
Internal UUID01a0ae9d-43bb-7a97-bbe3-cea77ab4648f · 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-2026-000091990
StatusPUBLIC

Content hashes

Canonical text03becddaca22aa1ca5cfee1a8de3d8da424bb291e8496877f323606528b1c908
Markdownd802add23d78f9c4bc177739fbcaaae9eb16906e4848dfda2121b5591478708a
PDF
Publication page63829bdf03de4881afc59aa5278ef3c8b6917aa38631c229bf22abed7a00936f
Manifestb71fdbf165571eef34064040ee9795e9021f8643feccb2d05b0de601eb078fdb

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
SignatureuceRNjyuGZXpJo6B9GW9TY7zrHcibyfqCe4UJ8uCUanOgsKh0VkTbsh+lGG06yvKChAqVIiA7kG/RlEGb9zxBQ==
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

2026-09-17T09:42:59.120356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091990
observed 63829bdf03de4881afc59aa5278ef3c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:59.087515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091990/manifest.json
observed b71fdbf165571eef34064040ee9795e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:59.037878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091990/publication.md
observed d802add23d78f9c4bc177739fbcaaae9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:58.967148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091990/publication.txt
observed 03becddaca22aa1ca5cfee1a8de3d8da...
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.