OpenTechnical

OT-2026-000076439

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000076439) never changes.

Identity and time

Publication numberOT-2026-000076439 · never reused
Internal UUID01a0ae94-6a71-75c3-890c-7e7c3ec8d80d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076439
StatusPUBLIC

Content hashes

Canonical textf2be92ccfe9cc05efaf1f7a400dd64622b456c0bb10ff5757e49ee1b5e052972
Markdown2c9810cc28b3c8e217f813f3e6879bb357400824cdc7a3063c75770062b4c426
PDF
Publication pagede0930827ed42c0e92c89e7973608bd285aa1d7d7671d10cd1cb0130b8a0d783
Manifest1368d3da31c62e7e3437ca071c27911b59045e2159c59085d6a42f3627434967

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
Signatureu8TVIekvsCtU+OPIbnV/irJnCDlWYBzYsTTBbAMY9YaZ8It4UAtwP7qyaVruVNcjXG6j9xEO3+Od9EQTdOkzBw==
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

2026-09-17T10:12:28.458192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076439
observed de0930827ed42c0e92c89e7973608bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:28.206150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076439/manifest.json
observed 1368d3da31c62e7e3437ca071c27911b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:28.013126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076439/publication.md
observed 2c9810cc28b3c8e217f813f3e6879bb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:27.991953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076439/publication.txt
observed f2be92ccfe9cc05efaf1f7a400dd6462...
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.