OpenTechnical

OT-2026-000090644

Publication integrity record

Two cup vacuum gripper, two 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-2026-000090644) never changes.

Identity and time

Publication numberOT-2026-000090644 · never reused
Internal UUID01a0ae9c-7f30-7323-8862-e19bc9bbe324 · 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-2026-000090644
StatusPUBLIC

Content hashes

Canonical text391a28c40729483ff54433aacd2641942c119dca4c8354a0058544dada7b36a3
Markdown67e68e08230cdfd60bc8e4d713f1213f334cecd0227cd952ef82d1ea734e7887
PDF
Publication page1415ad163f7d9d296ea0580dce1845c4f653c751c2bf3be39e01dc2643f7dc56
Manifestd32985c091a958f82144c612c04d915dd83216e38e1408e58375632bc96d1a89

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
Signaturejjx/WUG25HGZgG0TpOkiP0Zeo6bXbVaLIyAlp8JEZRJ3Sljs1iY7LPd4iP6Okwtcoeb/A/y52bhvzWmV2KJCDw==
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

2026-09-17T09:44:49.909177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090644
observed 1415ad163f7d9d296ea0580dce1845c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.889332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090644/manifest.json
observed d32985c091a958f82144c612c04d915d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.870307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090644/publication.md
observed 67e68e08230cdfd60bc8e4d713f1213f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:49.852775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090644/publication.txt
observed 391a28c40729483ff54433aacd264194...
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.