OpenTechnical

OT-2026-000031559

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, 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-2026-000031559) never changes.

Identity and time

Publication numberOT-2026-000031559 · never reused
Internal UUID01a0ae74-87af-7be4-b36b-569af42116f4 · 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-2026-000031559
StatusPUBLIC

Content hashes

Canonical text4a57c8124a57dc872f3282b90c10ab97a73529e39247ca6370ba2a4992b987f8
Markdownc6fbcfe4c63e25f91244d3bba44a60d2822f3252a16dc939afe56767ba26e95f
PDF
Publication pagedecf5abd1935250d6c6635fd82746f4639dac4c4fc6ec750f9e0119306bb0d82
Manifest28651608e790a366adad93f7855c7dcf7303c75646763ea3eab7dbf9212fe4aa

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
Signature7jaZkab0NULiZS53YA+Whffa35JvQZxY7c/4bQsPCD1tMvuA88+Lwsp/RYwIWvw1p3F8gtZRk0msdDDoM0E1CQ==
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

2026-09-17T11:36:24.356522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031559
observed decf5abd1935250d6c6635fd82746f46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:24.338974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031559/manifest.json
observed 28651608e790a366adad93f7855c7dcf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:24.319365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031559/publication.md
observed c6fbcfe4c63e25f91244d3bba44a60d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:24.299997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031559/publication.txt
observed 4a57c8124a57dc872f3282b90c10ab97...
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.