OpenTechnical

OT-2026-000067459

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump 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-2026-000067459) never changes.

Identity and time

Publication numberOT-2026-000067459 · never reused
Internal UUID01a0ae8f-6bd9-7beb-9b83-2e33298af4dc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067459
StatusPUBLIC

Content hashes

Canonical text559f6083375ad17c9395340f0614a754b0bbb0e438deb4dba2685e223ba82bcb
Markdownb8c69d023a39661f037662429d52bfc62fb791035bfb5e1f96dde264ddc0dc55
PDF
Publication paged1325c99e52052123c798b50805d5957e77174bafa55dc7ef4a0442ed4cb4df4
Manifest5ef0fbf9418fa46409405419f78637b39e881a63fcc8654920b0388f2e6a4a1c

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
SignatureEij01j1XmQuxnBhlR8J4H05w9lpYIWN8pWvRYj1QyDbgHwKEBUBZKpJucMFSowS5JvlIYbFCZVCICu2FYLt4AQ==
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

2026-09-17T10:31:39.953291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067459
observed d1325c99e52052123c798b50805d5957...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:39.934400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067459/manifest.json
observed 5ef0fbf9418fa46409405419f78637b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:39.915816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067459/publication.md
observed b8c69d023a39661f037662429d52bfc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:39.896842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067459/publication.txt
observed 559f6083375ad17c9395340f0614a754...
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.