OpenTechnical

OT-2026-000029387

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, three stage ejector, 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-2026-000029387) never changes.

Identity and time

Publication numberOT-2026-000029387 · never reused
Internal UUID01a0ae73-5e20-7810-81c0-a18d73512ff0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029387
StatusPUBLIC

Content hashes

Canonical text92c4348adb8c3546cdbb587c603a2609067fa82092be8f275a1d4d3daf7b6dd8
Markdownd1d7c9f5379cbe3c8c6446b3c9d74957e7cbd1d58cd680713fd481def5b962bf
PDF
Publication page995a92c04044e8a4456f5fc60d11691475eb955a4aaf4b5376efa084b342226e
Manifest7dbfc1bc11d22dc824d1640c43ccd38d28d6787ffe301c5e9f119c80f9acee2c

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
Signature6JIWPHCpO8zy+aaJ+L2lBfMCRlOphqT+x9zCiUJoEcNQ0qRISmq9YDnFfj5Qb+BOUVuj8VEpOTEQfaAivNqBBg==
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

2026-09-17T11:38:57.243836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029387
observed 995a92c04044e8a4456f5fc60d116914...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:57.226264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029387/manifest.json
observed 7dbfc1bc11d22dc824d1640c43ccd38d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:57.207394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029387/publication.md
observed d1d7c9f5379cbe3c8c6446b3c9d74957...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:57.185957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029387/publication.txt
observed 92c4348adb8c3546cdbb587c603a2609...
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.