OpenTechnical

OT-2026-000045499

Publication integrity record

Foam pad vacuum gripper, three zone face, two stage ejector, 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-2026-000045499) never changes.

Identity and time

Publication numberOT-2026-000045499 · never reused
Internal UUID01a0ae7c-f76d-7ca8-b3b4-6d01e4425120 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:20.545172Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045499
StatusPUBLIC

Content hashes

Canonical textf74de9cb0668a0dc65e399d356006f1bb438bf1990a9c65f58ad96d61767da5c
Markdown54f4ef2e81b512ca9532ac425208bc6bb795cd73b718184336dcd99288607039
PDF
Publication page519c34b289119a0be6b4e2067e7d050e48dfd53b3d4ae0f4722081e0328b2e6e
Manifestbc682dd74a13c505589a29263914227f26d21c14d6fac8280c3b754cb5802176

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
SignatureBI8N/eJC65HG+J3TLcMojFOpWwqLX42VIGK9f+j6i71H4yrkmHcNPNggB8Jbw+AU26jV+UxRDT2Grg72bWCoBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:11:19.031611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045499
observed 519c34b289119a0be6b4e2067e7d050e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:19.012849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045499/manifest.json
observed bc682dd74a13c505589a29263914227f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:18.993247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045499/publication.md
observed 54f4ef2e81b512ca9532ac425208bc6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:18.974878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045499/publication.txt
observed f74de9cb0668a0dc65e399d356006f1b...
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.