OpenTechnical

OT-2026-000031185

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000031185) never changes.

Identity and time

Publication numberOT-2026-000031185 · never reused
Internal UUID01a0ae74-87ab-7457-a485-ebf7b206d66b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031185
StatusPUBLIC

Content hashes

Canonical textcfd37ef84beeb218e7c74aba61dd4399320fbae79fb34ed2886b15c1d79a2294
Markdownbdfa6012055089c7db64f2a8255b71f3379504503a3120021b6726f9ba9a70f5
PDF
Publication page53a8ed6c9086d5ac937f61816fe3808fb8ca94b51a55bafc1a344909696c5773
Manifest341ebde5ec1a542327fab4b3091669d1d7014293ac32ef1129bc1b35c68e0489

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
SignatureyeG0hrOAt9KX3XTZR8POtOImVj9xQyax4EUkokEzUSzd91WpS7oQrKhlDRoLvcS6Tri3pQjVfQhFC+cAf6YdBg==
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

2026-09-17T11:35:44.470210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031185
observed 53a8ed6c9086d5ac937f61816fe3808f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:44.450345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031185/manifest.json
observed 341ebde5ec1a542327fab4b3091669d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:44.427492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031185/publication.md
observed bdfa6012055089c7db64f2a8255b71f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:44.407429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031185/publication.txt
observed cfd37ef84beeb218e7c74aba61dd4399...
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.