OpenTechnical

OT-2026-000078291

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000078291) never changes.

Identity and time

Publication numberOT-2026-000078291 · never reused
Internal UUID01a0ae95-7c27-7849-b642-565e5796f9f6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078291
StatusPUBLIC

Content hashes

Canonical text4415f269fb2a72efbc239b36983fabc3a6fbc512dcce7ad9a456c38c621ea076
Markdown1fd8f6e8e9ac14d9e411ae338659b458fdc6da8c73096b683ba65ae67464fdac
PDF
Publication page7e3dcde46118c004580c536e546e5a432cf25d04309301e621e6a4896dcdd766
Manifest4e05c0ae3df6c1d22e761a4471a0c5a9a75ef38161b7780b573c19a4b4db8ade

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
SignatureXd4FpG6LR8MWNNNAX2gHoORNpEQdg0hIMhCuMhRgP6SValG84FF/Hy5AK8aBCXsy42RgnJxZ4o7DRNBvxxdlAg==
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

2026-09-17T10:06:15.319767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078291
observed 7e3dcde46118c004580c536e546e5a43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:15.300836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078291/manifest.json
observed 4e05c0ae3df6c1d22e761a4471a0c5a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:15.282471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078291/publication.md
observed 1fd8f6e8e9ac14d9e411ae338659b458...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:15.264297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078291/publication.txt
observed 4415f269fb2a72efbc239b36983fabc3...
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.