OpenTechnical

OT-2026-000077391

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum 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-2026-000077391) never changes.

Identity and time

Publication numberOT-2026-000077391 · never reused
Internal UUID01a0ae94-f509-754e-b478-3b6b1e43c16f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077391
StatusPUBLIC

Content hashes

Canonical textcbd9f43e8058b94c78e5dc07ed202d168d73a6454cddce07cee0c43e15ab0a43
Markdownc9c18a8c8b1eb6d98540c7f7e7e04902ec9cef37eebafe603ae422cf090382ab
PDF
Publication pagef6946e082ffbc5738dae6fe4cfea76c1ee0e80d6cf774fe7df8efd959cf4122e
Manifest64c0ace0e5ddfc8d5d458b2e6f37c9fb4c697ecd0440cc6bee8ab3a2d7c1e446

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
SignatureJIqtU8/ilhtuV/KwhDR+sfl84yBXfV4swV3bvXnj4WO9DRTCfNz6ovYSn/2MNk0HFNHOJOmvTw7OH/EXgPbXBA==
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

2026-09-17T10:09:02.388864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077391
observed f6946e082ffbc5738dae6fe4cfea76c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.370639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077391/manifest.json
observed 64c0ace0e5ddfc8d5d458b2e6f37c9fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.352329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077391/publication.md
observed c9c18a8c8b1eb6d98540c7f7e7e04902...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.333721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077391/publication.txt
observed cbd9f43e8058b94c78e5dc07ed202d16...
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.