OpenTechnical

OT-2026-000048547

Publication integrity record

Four bellows cup vacuum gripper, four 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-2026-000048547) never changes.

Identity and time

Publication numberOT-2026-000048547 · never reused
Internal UUID01a0ae80-4de7-71ea-a502-80d20433e39f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048547
StatusPUBLIC

Content hashes

Canonical textf141be6d07853ab4bdac28d8c568ca8bf11a95c70e8f5902e6efe00f0163c883
Markdown6abecccd88a22c51ae00ead14741dae24f9130bde7071c8230387b9054d10470
PDF
Publication page0086a9c5a686b9dc43e77435bda548c8168414a28bafc33ab00d3843d0c244c8
Manifest765be3f8e3f70cb8884ae512e34c022d65731526fefa6ca6fff5498d03453bfe

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
SignaturejdQ5HwnSPY6zRRekgwIyF9AKslaJ5WwW+Oty+OfHE8l9xWsYASE0fxHRStcQgeXSUoQ+xsDuPNJWmkQkESXVCw==
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

2026-09-17T11:05:20.440056ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048547
observed 0086a9c5a686b9dc43e77435bda548c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:20.423756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048547/manifest.json
observed 765be3f8e3f70cb8884ae512e34c022d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:20.405716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048547/publication.md
observed 6abecccd88a22c51ae00ead14741dae2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:20.388314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048547/publication.txt
observed f141be6d07853ab4bdac28d8c568ca8b...
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.