OpenTechnical

OT-2026-000075873

Publication integrity record

Foam pad vacuum gripper, three zone face, two 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-2026-000075873) never changes.

Identity and time

Publication numberOT-2026-000075873 · never reused
Internal UUID01a0ae94-29ff-7f56-a8d0-05bf7e479caa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075873
StatusPUBLIC

Content hashes

Canonical text6ece201bf023b7057cc37e7f64ae68eb46645eeefcf629cf201bf44a1a91146d
Markdown912b9a61514800fae86b3dda074b88479b42200a8b2eb68a81d809a9228ad97a
PDF
Publication pagee93e158a03b66bc77af9b98fa11fcecc6db076012c8b933f5ef83c396c82eebb
Manifest0ac1cf99ac5235d43a0086d5d2c412688fa3af26cde694955ed3491ff5601245

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
Signature8w6m3HJw6j2C5+M2o7LsrNWjoV42ZwazZsylp8E16KKYczZP7f1grZ1EqOQL9dxL2WGLw9wiF7SCoN3/UYvpAQ==
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

2026-09-17T10:14:38.196273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075873
observed e93e158a03b66bc77af9b98fa11fcecc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:38.055698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075873/manifest.json
observed 0ac1cf99ac5235d43a0086d5d2c41268...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:38.039836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075873/publication.md
observed 912b9a61514800fae86b3dda074b8847...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:38.022302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075873/publication.txt
observed 6ece201bf023b7057cc37e7f64ae68eb...
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.