OpenTechnical

OT-2026-000077437

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, single 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-2026-000077437) never changes.

Identity and time

Publication numberOT-2026-000077437 · never reused
Internal UUID01a0ae94-f509-77d0-8a35-7d3a64ccf44f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077437
StatusPUBLIC

Content hashes

Canonical textf7aa514679976b5344934f20afc3ac72f4de05009e4382dda8d15172be5542d2
Markdowne6a38793bcb1c82c84cccfb8f56603628a70bd915d493e18d35e435d893fda24
PDF
Publication page13051650862abbd906066ea455379297564ac1ee9e4e201647615b0590863294
Manifestb5a13c8bbef013a250e0b5f6454b84625dd2526b8d284ba898f9c60862545f10

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
SignatureSKfVY/8U0KDYPy89nWjjG9usG0ug0oySCbkQVcOmPrl5NTwNN/XvxhijtIh+eEGTfkXFvc3EL2eobQX77l0GBA==
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

2026-09-17T10:09:07.260568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077437
observed 13051650862abbd906066ea455379297...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:07.242218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077437/manifest.json
observed b5a13c8bbef013a250e0b5f6454b8462...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:07.221001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077437/publication.md
observed e6a38793bcb1c82c84cccfb8f5660362...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:07.199193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077437/publication.txt
observed f7aa514679976b5344934f20afc3ac72...
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.