OpenTechnical

OT-2026-000090253

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two stage ejector, pressure sensor per zone, sustained 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-2026-000090253) never changes.

Identity and time

Publication numberOT-2026-000090253 · never reused
Internal UUID01a0ae9c-428f-79e7-84f8-b23ad1da118e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090253
StatusPUBLIC

Content hashes

Canonical textd110404eed8042c5c1c079763126bf25829740162699684569c34e657f3de842
Markdown6e429cd6652947611556a1f802b359165213da4baa7219fc9f014524d267848f
PDF
Publication pagef6c8ef725fdbd65184c6ea9921114c6fd219f63b6581bc18ddf70565e03ab344
Manifest8c21dd80a84dbe56028031ca90d3b55c2d06463a225699e92d57785939221982

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
SignatureWshoHQokkm70UimOrAlDh8jnUTehN2kIxVyVcPlmRBVup31+JH0e5VPrlSrIoNcnpQysUZ3Agtgsaclh1NeSCg==
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

2026-09-17T09:46:19.684899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090253
observed f6c8ef725fdbd65184c6ea9921114c6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:19.668685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090253/manifest.json
observed 8c21dd80a84dbe56028031ca90d3b55c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:19.652406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090253/publication.md
observed 6e429cd6652947611556a1f802b35916...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:19.635081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090253/publication.txt
observed d110404eed8042c5c1c079763126bf25...
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.