OpenTechnical

OT-2026-000074073

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000074073) never changes.

Identity and time

Publication numberOT-2026-000074073 · never reused
Internal UUID01a0ae93-2b8f-7262-ab64-624d5f18488b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074073
StatusPUBLIC

Content hashes

Canonical text91138d054f2cb41686c015bb7a7f9bd586cf5a066f20063c63f7c2b586dbdd0f
Markdownb89a44b1feebc3e724c24bbd03a87254fdae9cfc1609755edab8b249831aef7f
PDF
Publication pagece09ebf6e8d4b2d376d1658259ed557bbdbb6e3c93c2a9f6a35ade7b9c3db971
Manifest585337e58e4682892788ede23abee752a01832b9d2d9bd6a3f2ee695c361c661

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
Signatureb20TRcc7DWbVrmGa423iSIIV+XwGNewPvC3WNBNVeQT0P4ceXkmrUwuverQGqQkBLixLTTPR2OyVls6LJyW1AQ==
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

2026-09-17T10:20:58.420967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074073
observed ce09ebf6e8d4b2d376d1658259ed557b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:58.402397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074073/manifest.json
observed 585337e58e4682892788ede23abee752...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:58.383707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074073/publication.md
observed b89a44b1feebc3e724c24bbd03a87254...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:58.357299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074073/publication.txt
observed 91138d054f2cb41686c015bb7a7f9bd5...
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.