OpenTechnical

OT-2026-000007185

Publication integrity record

Porous face vacuum gripper, three zone face, common isolation valve, three stage ejector, contact triggered

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-2026-000007185) never changes.

Identity and time

Publication numberOT-2026-000007185 · never reused
Internal UUID01a0a975-c4c0-7a25-bb56-3cc92169a5f3 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:04:22.723317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007185
StatusPUBLIC

Content hashes

Canonical textddea8bf7436ca86e6de9258f56b90e20936b1f1c8823caacaa7c3493e479c4b1
Markdown090a742b2e6901fce4ee51320ce42b335cbb93e5e7c398e09fd98f0a52e6f1c8
PDF
Publication pageeb89bf4dee275ad7770a33d877e92639a7e9ba769a7197410a60d06ea4129816
Manifest6396018bf331061d6b88abb669a430c3b9196cc86105b5733a13419216e25512

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
SignaturebB8he3F2VIFc8IfirAcrn6qH/c1d+BfG9ZlORYN4NZ+TOPgb7CKkH4zMl5F8qam5QMjITpiQ2zQCaGZOQCq2Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:18.152172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007185
observed eb89bf4dee275ad7770a33d877e92639...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:18.139482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007185/manifest.json
observed 6396018bf331061d6b88abb669a430c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:18.005858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007185/publication.md
observed 090a742b2e6901fce4ee51320ce42b33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:17.993298ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007185/publication.txt
observed ddea8bf7436ca86e6de9258f56b90e20...
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.