OpenTechnical

OT-2026-000066535

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000066535) never changes.

Identity and time

Publication numberOT-2026-000066535 · never reused
Internal UUID01a0ae8e-ce41-7a54-99db-079edd94d467 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066535
StatusPUBLIC

Content hashes

Canonical text503e6bf6aea47f024232f3bf475080e76c208e108cb4162ffcee36feb0c43f6e
Markdownfc2853408b3932279b7bceba4cd56b6ffbe1823a9477748628552e8139ec0b6b
PDF
Publication pagead980cc5dcfff34b367ac4a9f2d01fd0aef159da867b00de989da949fb346977
Manifest88884c9ee9040216df6f90e8bbfc1055b47422a3299d665a0f2f66a9258e4718

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
Signaturep3vlnqwNoj0Jcct3g5Lvua0Ggyq1BuVSA/lUAQmjw5nPMWz1ZlVYSJYl0tH8jAL24f86U4x+LPoQ5ir1dla7CQ==
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

2026-09-17T10:32:47.994925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066535
observed ad980cc5dcfff34b367ac4a9f2d01fd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:47.977510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066535/manifest.json
observed 88884c9ee9040216df6f90e8bbfc1055...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:47.960371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066535/publication.md
observed fc2853408b3932279b7bceba4cd56b6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:47.943543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066535/publication.txt
observed 503e6bf6aea47f024232f3bf475080e7...
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.