OpenTechnical

OT-2026-000090809

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, three stage ejector, pressure sensor per zone, sustained blow-off before set-down, on a tool changer

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-2026-000090809) never changes.

Identity and time

Publication numberOT-2026-000090809 · never reused
Internal UUID01a0ae9c-7f32-7a94-80d6-1e89c589c2e7 · 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-2026-000090809
StatusPUBLIC

Content hashes

Canonical text2a27317a7c9b07d655f5cda5cd14d857ada226c43f11650732ee9033074f4757
Markdownc93b50597d1ac66d185fad6ca6c73f83b9607675ad0a400b1914d7222bc35131
PDF
Publication page5542d39211c0f41acc7e6700e2298643bd63e217db52258227ff940d1baa9b9d
Manifest4a5e00bbd87489491252f9ee8b8e0a6ca71b9212a92d82d2edb5e829fa310d0f

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
SignaturescnDw0HjxVQM0Q7ndomR6eqAPeqIxKe307hCkEr4NAB5HcFBDSsEAHTBzMlIjyp41gvX5hGemwd021C3PzJsCw==
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

2026-09-17T09:45:01.159262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090809
observed 5542d39211c0f41acc7e6700e2298643...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:01.140958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090809/manifest.json
observed 4a5e00bbd87489491252f9ee8b8e0a6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:01.123965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090809/publication.md
observed c93b50597d1ac66d185fad6ca6c73f83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:01.105347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090809/publication.txt
observed 2a27317a7c9b07d655f5cda5cd14d857...
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.