OpenTechnical

OT-2026-000072909

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, single stage ejector, supply line pressure sensor, 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-2026-000072909) never changes.

Identity and time

Publication numberOT-2026-000072909 · never reused
Internal UUID01a0ae92-c814-79f1-8dac-2d86254a7793 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072909
StatusPUBLIC

Content hashes

Canonical text8c8521fc9174adb6c9536f504e38153d4a50a2a84fec2abbf49c3c0d6de38b09
Markdownef45e96882860af92e0fcaf60adcca2c5be89756989aed312aa05bd26085f30c
PDF
Publication pagecb15149ea27766ce9dd41252eebb30b5f247fd5bef0f7efa2e95a97720dd350a
Manifestf45fbdff44e96bb35e8041664577d6d69017619fed69d4b4c7d10ee364d01b83

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
SignatureSuVWjO71/y4HsxKl7LksvGlkEAumMi3xPZSlII3s7/QtysSYnbveMmiD2kpHXcmWJ5zg+P1zG1jC7oRcg6VcAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:21:49.170747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072909
observed cb15149ea27766ce9dd41252eebb30b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:49.152076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072909/manifest.json
observed f45fbdff44e96bb35e8041664577d6d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:49.135190ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072909/publication.md
observed ef45e96882860af92e0fcaf60adcca2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:49.115239ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072909/publication.txt
observed 8c8521fc9174adb6c9536f504e38153d...
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.