OpenTechnical

OT-2026-000029279

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, three stage ejector, pulsed blow-off before set-down

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-2026-000029279) never changes.

Identity and time

Publication numberOT-2026-000029279 · never reused
Internal UUID01a0ae73-2aa1-75d6-ac9f-32b530caf248 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029279
StatusPUBLIC

Content hashes

Canonical text509c20d671c9df56007b9649c35138474adad53761442b3cff357bbaeacc6247
Markdown7cd3bce0ea6ff334c93333ee4eff69c293e52993473216122a1278bea25b3ab9
PDF
Publication page8c78bb81f1b5510d50e73692ea59fc710fb7dc256c74ecf175e44a32125fbd61
Manifestc693c67d530fbc08091f69a3c5d0e3927428dce292255ea69a5c1fb604ab78b9

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
SignatureHJ91OX7GSXd7yxtV1G/IFW6aNjdM4PlWAkk1rxI96lFhW7CAreR7lfd2PfQo1snN0JX7f09K09OYAAKgA8fvAw==
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

2026-09-17T08:20:47.181875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029279
observed 8c78bb81f1b5510d50e73692ea59fc71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:47.039608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029279/manifest.json
observed c693c67d530fbc08091f69a3c5d0e392...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:47.022412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029279/publication.md
observed 7cd3bce0ea6ff334c93333ee4eff69c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:46.998609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029279/publication.txt
observed 509c20d671c9df56007b9649c3513847...
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.