OpenTechnical

OT-2026-000090752

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000090752) never changes.

Identity and time

Publication numberOT-2026-000090752 · never reused
Internal UUID01a0ae9c-7f31-767d-87e3-32aef15c9903 · 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-2026-000090752
StatusPUBLIC

Content hashes

Canonical textda4e44625d520f77255e4287c57ad2ed6f40c6b4e96386f385d581a824d0c8c3
Markdown78db12ffb9a891a71f9cea0922b582209d8063b0cb12eb9d25ddbbbb527f5d88
PDF
Publication page3a7d29f0ad86e04d5f25fb82ae2e73759907912b7bb33b0f6aa0bf986c33dbe2
Manifesta1a6bb0a5249efd098635520c3d47e3172f5fcf08c0ae65ec8d2a6cb73abb529

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
SignatureSXycXrZb7twyXASdxUitoNy+yC3ki5p/Tyv/lyItcQUX1FlCYjuZxwT7kgdyi2SPK/kRODiv3Snr2koSNwasBQ==
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

2026-09-17T09:44:56.743339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090752
observed 3a7d29f0ad86e04d5f25fb82ae2e7375...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.723617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090752/manifest.json
observed a1a6bb0a5249efd098635520c3d47e31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.703781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090752/publication.md
observed 78db12ffb9a891a71f9cea0922b58220...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:56.685732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090752/publication.txt
observed da4e44625d520f77255e4287c57ad2ed...
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.