OpenTechnical

OT-2026-000074454

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000074454) never changes.

Identity and time

Publication numberOT-2026-000074454 · never reused
Internal UUID01a0ae93-717a-792a-88eb-705f83e250ee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074454
StatusPUBLIC

Content hashes

Canonical texte85e558381bd33c72cc37fbb45c3da398aaa22b74f6a67d8d1810e051eb9defd
Markdownb0d24bdcd80559ca65800c1ed4e0fcd7cfe885bdf971512a6d8d4b7f329a5c1d
PDF
Publication page4a0d1dcd5241a167240e2bf1816cb97e255bd9a5b8b64e1428826deab19d6350
Manifest8ba6f57f6349ebbec80621a3c037d83b7cbc11b2f50a2076cc673f30f55e90c0

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
SignatureC3U1CbWfzHH2QBIxxHP0rYkxU/W9qHXDoaN0b97DOAwKxga073dienjd+ATCxNwlCOQEgP0FOS2huqGhVYGlAg==
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

2026-09-17T10:19:24.689540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074454
observed 4a0d1dcd5241a167240e2bf1816cb97e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:24.670359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074454/manifest.json
observed 8ba6f57f6349ebbec80621a3c037d83b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:24.649940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074454/publication.md
observed b0d24bdcd80559ca65800c1ed4e0fcd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:24.629938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074454/publication.txt
observed e85e558381bd33c72cc37fbb45c3da39...
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.