OpenTechnical

OT-2026-000012389

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump 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-2026-000012389) never changes.

Identity and time

Publication numberOT-2026-000012389 · never reused
Internal UUID01a0ae6d-39f6-7a49-a0fc-48d5966aaeaa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012389
StatusPUBLIC

Content hashes

Canonical text2f20354cda7e40e6f4b9edb15d0df9f8138a2f86f79821c07cb8caa4d4c86866
Markdownbe3ff3b87a838abab7a8bee1f09d2a5e0ed2230b28ca2ad948d5a005b6e60200
PDF
Publication page08c1af20889a0b18eec44f125d4baf9445245e27e619bdc5a982b2008086d470
Manifest68f4ee717ac6b0bc3d7636176214db5ebafe5e50d36a43c75f2b6360b1fa9905

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
Signature5urutJb+KUDOOXbjduYfpQt+vYUz4OlD+/IieRadZ3jSBouxh5zFcHzZPbzmw+ltNBzkb/G9F781oQybDiLkCw==
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

2026-09-17T12:10:58.461714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012389
observed 08c1af20889a0b18eec44f125d4baf94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:58.435083ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012389/manifest.json
observed 68f4ee717ac6b0bc3d7636176214db5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:58.414854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012389/publication.md
observed be3ff3b87a838abab7a8bee1f09d2a5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:58.386551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012389/publication.txt
observed 2f20354cda7e40e6f4b9edb15d0df9f8...
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.