OpenTechnical

OT-2026-000072934

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000072934) never changes.

Identity and time

Publication numberOT-2026-000072934 · never reused
Internal UUID01a0ae92-c815-773b-bd29-01f812dea342 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072934
StatusPUBLIC

Content hashes

Canonical text8afb091120ddd3ed7ca184cfab4e02d83a8b6bba3d80ad3844df1f130d82640c
Markdown774b1d540ef0dd9512c55e9f7cae05f8041c0f5c7a25687148b9e3de612fb003
PDF
Publication page617871ff41c0317ebc17a46c702b8a6dd93dc08ca1b2e92ebddcc0244cef9f5c
Manifestfcb69cf7932fbbc921bbd49246d8fc1d3aa6dd36ae48242c7d5c5f2a74f52330

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
SignatureRlN2+W1otxi2oRl2ouTwquu+yx0BAcLEUOfSjUWBNnJ1J/ZsiqhC5wqfAqcdzf2MvnOPZLFzJCvf53dbn5UeBw==
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

2026-09-17T10:21:51.075714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072934
observed 617871ff41c0317ebc17a46c702b8a6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:51.055841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072934/manifest.json
observed fcb69cf7932fbbc921bbd49246d8fc1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:51.037204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072934/publication.md
observed 774b1d540ef0dd9512c55e9f7cae05f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:51.018468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072934/publication.txt
observed 8afb091120ddd3ed7ca184cfab4e02d8...
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.