OpenTechnical

OT-2026-000050251

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, 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-2026-000050251) never changes.

Identity and time

Publication numberOT-2026-000050251 · never reused
Internal UUID01a0ae82-5c46-7ba1-a01e-5bff60ff35a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050251
StatusPUBLIC

Content hashes

Canonical text3a8b380d793e0ed52755b9d02cbdd5ccd7253fc9a5684e9ab644e32f91dc3cc2
Markdownf1c5078ac1862cbd62f09636b79969e89809a48f7728017d9632cb4f1bcb3f31
PDF
Publication page434ac26ba063d36853f0afaa346040da44fdc5a9831350c21520fe8b1b1c0662
Manifest7df829205894224675509f608f799321f975e37f6649f2851d624423fd97117c

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
SignatureLzKAOMkvU3bzHhxxiz+PtckKOstpAB5uUOCpHciP1arPQVWFu3Y/qtoPP6/9ASGytlii6b3TtDZS2fLDQvoIAA==
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

2026-09-17T11:01:15.027580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050251
observed 434ac26ba063d36853f0afaa346040da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:15.012106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050251/manifest.json
observed 7df829205894224675509f608f799321...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:14.995577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050251/publication.md
observed f1c5078ac1862cbd62f09636b79969e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:14.979976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050251/publication.txt
observed 3a8b380d793e0ed52755b9d02cbdd5cc...
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.