OpenTechnical

OT-2026-000090686

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, two stage ejector, 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-2026-000090686) never changes.

Identity and time

Publication numberOT-2026-000090686 · never reused
Internal UUID01a0ae9c-7f30-744b-ab0a-48692c96bc7c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090686
StatusPUBLIC

Content hashes

Canonical text4a106af61a54df48ee26dae773d6fd84fa7574e89358bec90f0165fb5aa9cfc5
Markdown1f1788b12d7a56bbe3c9b1047f2f32e9237de775b946cad5bc6b98c7d77cf081
PDF
Publication page7942fd493bd5009f5920f80deec3e0605ce9eabf17aa1f35c171469f8e64c865
Manifestccb153bb9179dda166c96573dc081b1219bf86d5efb9f2cabf0db52fa5b7da6b

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
SignatureY+P13gRM8lRy039DCpMWTZLqs6PVVYJSeChpBewEYzv4mz0zzVWOVpgI/WZxKP1EbgNW8S7pATr8ADltjJ2SCw==
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

2026-09-17T09:44:53.114654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090686
observed 7942fd493bd5009f5920f80deec3e060...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:53.095700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090686/manifest.json
observed ccb153bb9179dda166c96573dc081b12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:53.064861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090686/publication.md
observed 1f1788b12d7a56bbe3c9b1047f2f32e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:53.035013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090686/publication.txt
observed 4a106af61a54df48ee26dae773d6fd84...
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.