OpenTechnical

OT-2026-000015222

Publication integrity record

Foam pad vacuum gripper, plant vacuum fed, supply line pressure sensor, 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-2026-000015222) never changes.

Identity and time

Publication numberOT-2026-000015222 · never reused
Internal UUID01a0ae6d-ef48-73f8-8b77-4f1fbd809b9b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015222
StatusPUBLIC

Content hashes

Canonical text7eb65cdd804f0af7cf856c1d49fe8475903933625d0f190ccf011bf8a6f58fc2
Markdown67d1f0ead0fbc5ffdafb9e55d192448ee66819cece7b24fba1ddf372176e4728
PDF
Publication pagecd6d1395228d5adb42e96b4825c197f9720706fdc53523d5f6589f0c007a6ea6
Manifestf861a68de815ff2019057469f4394967aa4bd99b77aab7fbb8a631fff5ad4e81

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
SignatureLkL/JJ40mPMddLxhEUBukpTW0ndnoX0R2KVxPyR1xuVOf/LcTjgUUaWQ4Sclwtt4yxsWT3GJiCoKdDxRhAEIBA==
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

2026-09-17T12:05:51.716887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015222
observed cd6d1395228d5adb42e96b4825c197f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:51.697937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015222/manifest.json
observed f861a68de815ff2019057469f4394967...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:51.679039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015222/publication.md
observed 67d1f0ead0fbc5ffdafb9e55d192448e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:51.660524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015222/publication.txt
observed 7eb65cdd804f0af7cf856c1d49fe8475...
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.