OpenTechnical

OT-2026-000091128

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000091128) never changes.

Identity and time

Publication numberOT-2026-000091128 · never reused
Internal UUID01a0ae9c-f16b-756e-9542-d9feb27cf307 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091128
StatusPUBLIC

Content hashes

Canonical textccf86e84e0c4e48966035c5faf5ca269207530fdb24d4e369d40f91c8217afec
Markdowna590a93166a0a50f513840eb761c7e1b907ecce2b856d9c4adf7d70219c33f0d
PDF
Publication page018ef782eea8b704ccbc3ccff545b674a7352d48162123804b96c4ad2446bf57
Manifest3450b543ffef31aaab20e5b67320eafd85af5dd3ceb24d8611667438737adac9

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
SignatureCNmd0tENb+voVsAORGjHiG0bPYcAmYHkub65fXpdtG/9JkwuGjGhtm78xe7plRl3kqE2FF8TA0ZgcsaFS8SnBQ==
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

2026-09-17T09:43:17.017609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091128
observed 018ef782eea8b704ccbc3ccff545b674...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.999318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091128/manifest.json
observed 3450b543ffef31aaab20e5b67320eafd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.981366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091128/publication.md
observed a590a93166a0a50f513840eb761c7e1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.964561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091128/publication.txt
observed ccf86e84e0c4e48966035c5faf5ca269...
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.