OpenTechnical

OT-2026-000046191

Publication integrity record

Four cup vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000046191) never changes.

Identity and time

Publication numberOT-2026-000046191 · never reused
Internal UUID01a0ae7e-032c-787c-b57d-f0f819495509 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:31:29.080672Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000046191
StatusPUBLIC

Content hashes

Canonical textded7bc5732ad26aedbbf2ab590c562416f7503d605c309c3f5ad0fafa8a37427
Markdowna533e99c84cce03c2d2eca88c5624f7e07a99ab5e8eddcd2cb29a04d8346c485
PDF
Publication page4b4b3d6908df9c1c9a795c3915d3f232e9b8799ac274eeb35d554a8893022bea
Manifestfe89fb0a98cc1d9f0eef644b2706afa2b9c6c672166fe53eb1835e314f1411d7

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
SignatureoU3w3SggJOwv3jdmK6JElhiMgwzfH+UBkcLb11WP8sKGAIkfJPhNh7WZIsk5ILjtMRuUmZSpNp6SBhBzESjiCg==
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

2026-09-17T11:09:12.178887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046191
observed 4b4b3d6908df9c1c9a795c3915d3f232...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:12.160401ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046191/manifest.json
observed fe89fb0a98cc1d9f0eef644b2706afa2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:12.140565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046191/publication.md
observed a533e99c84cce03c2d2eca88c5624f7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:09:12.119305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000046191/publication.txt
observed ded7bc5732ad26aedbbf2ab590c56241...
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.