OpenTechnical

OT-2026-000077521

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000077521) never changes.

Identity and time

Publication numberOT-2026-000077521 · never reused
Internal UUID01a0ae94-f50a-7dd6-be74-348a73e767eb · 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-2026-000077521
StatusPUBLIC

Content hashes

Canonical textb9d628ca9f395bf57915ada0c1f90244fa842b97a1da36374d455fc78fd88aea
Markdowna80219468c0d963d532b825ea9ea1f195c0a0532cbbd5f722dc73cb8e68b7006
PDF
Publication page5c17da50c9d0ae5dc77a6a3522a54cf04cc9f68cd6841f36a20f193d641107c4
Manifest414ddec19c54abfb687e43b92db56ce9a38771c2a3e5154fd1c38ab951f72223

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
Signatures76mYLhIQ3Kq4PszMgrVvpd1qzfaFQvCo0pW6KALUbCmijr2BqgkOgM8e8ofLq1IwHlPDKWqgqG3VEVF0rZqBg==
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

2026-09-17T10:09:12.856382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077521
observed 5c17da50c9d0ae5dc77a6a3522a54cf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:12.822866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077521/manifest.json
observed 414ddec19c54abfb687e43b92db56ce9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:12.800562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077521/publication.md
observed a80219468c0d963d532b825ea9ea1f19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:12.780312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077521/publication.txt
observed b9d628ca9f395bf57915ada0c1f90244...
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.