OpenTechnical

OT-2026-000089628

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000089628) never changes.

Identity and time

Publication numberOT-2026-000089628 · never reused
Internal UUID01a0ae9c-1a21-76a3-acac-2353c42a789a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089628
StatusPUBLIC

Content hashes

Canonical text6eb0159d6c716279dc1a09142d8d82b23a9aed5800732322086a21fc8a2f07cf
Markdownfc3c5152006a5cf57c96140c55590b19df00ac109499e618ddcc4930d295e25c
PDF
Publication page012e471d37290315ee1881611d94a8a5f1d0998e3fa77c38d44365c8ccf6c8ea
Manifest23fa3fa5c0b69457a6f7cb729e494cf56f6688dc4395cc48a32aa6c9b0a81ae5

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
SignatureoSLpsjsh7w+zVYteR39089N4slfTkGGsILiuwCbFB7e6PVT1/XWMK0u7yoMtPWRV4W+FErAIvIzjftdzn+trCw==
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

2026-09-19T20:41:15.385142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628
observed 012e471d37290315ee1881611d94a8a5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T20:41:15.228081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628/manifest.json
observed 23fa3fa5c0b69457a6f7cb729e494cf5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T20:41:15.068126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628/publication.md
observed fc3c5152006a5cf57c96140c55590b19...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-19T20:41:14.934500ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628/publication.txt
observed 6eb0159d6c716279dc1a09142d8d82b2...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:46:36.863908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628
observed 012e471d37290315ee1881611d94a8a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:36.846361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628/manifest.json
observed 23fa3fa5c0b69457a6f7cb729e494cf5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:36.829917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628/publication.md
observed fc3c5152006a5cf57c96140c55590b19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:36.810318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089628/publication.txt
observed 6eb0159d6c716279dc1a09142d8d82b2...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent