OpenTechnical

OT-2026-000091696

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, 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-2026-000091696) never changes.

Identity and time

Publication numberOT-2026-000091696 · never reused
Internal UUID01a0ae9d-43b8-7644-89c5-75dbd81e9ef3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091696
StatusPUBLIC

Content hashes

Canonical text6fa3e873042535d578937a0cf9c94c3e4dc46f8a4330d31638fbf53ac9705114
Markdownbcb6f300a139d982ae50f736731b3424b6c2130f4824fcc0a1ff48af5fb764b4
PDF
Publication pageffc2de4f7592006fcc180784bbb3e32945fab810a2fcd75ea3d1299779dda312
Manifest80647ebb1c9544067c1be85dda2fe9bed608c18b981b65079bbf9d42a4ee738a

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
SignatureVkC4wSDxsBrk5JIEtJXBMJ4IDm/ajCZ059XeX6nfXe9unAaWlcQTW5RIj+qoT7WqNiM89EH7JbCqV1X/uOHNAw==
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

2026-09-17T09:42:05.008163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091696
observed ffc2de4f7592006fcc180784bbb3e329...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:04.990445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091696/manifest.json
observed 80647ebb1c9544067c1be85dda2fe9be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:04.973558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091696/publication.md
observed bcb6f300a139d982ae50f736731b3424...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:04.956917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091696/publication.txt
observed 6fa3e873042535d578937a0cf9c94c3e...
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.