OpenTechnical

OT-2026-000045291

Publication integrity record

Two bellows cup vacuum gripper, two zone face, 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-2026-000045291) never changes.

Identity and time

Publication numberOT-2026-000045291 · never reused
Internal UUID01a0ae7c-f76a-7e73-87b2-4905c3defbf3 · 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-2026-000045291
StatusPUBLIC

Content hashes

Canonical text3e87ef4a570d5958b1e87515547c8f99575442dd57a062d9603c4f6e975c56e5
Markdownaed4b6bf3a7539f81f36d1a4e150a6e3d9c219f387c4df3ef4c43f09c6d77cdc
PDF
Publication pagece599d86b1d6787bc83f3cbe821e6b6d3bf4c0ee71b13e7db09be164abd3f0bb
Manifest3e25b5e7dedb5de1fe10de20e8dd29f2b730914a871bf9b9a2faa8b6f8bfb879

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
Signature9NlLGkoVtbF/0lUwOgatCTX7+QjlvUUaFQj/7K5k3zFWIutV5XgGsb++7jv3Udcydq6FtXHzSIzzoRzvhTfyDw==
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

2026-09-17T11:10:30.546789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045291
observed ce599d86b1d6787bc83f3cbe821e6b6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:30.525706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045291/manifest.json
observed 3e25b5e7dedb5de1fe10de20e8dd29f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:30.507156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045291/publication.md
observed aed4b6bf3a7539f81f36d1a4e150a6e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:30.488628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045291/publication.txt
observed 3e87ef4a570d5958b1e87515547c8f99...
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.