OpenTechnical

OT-2026-000075894

Publication integrity record

Three bellows cup vacuum gripper, three 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-2026-000075894) never changes.

Identity and time

Publication numberOT-2026-000075894 · never reused
Internal UUID01a0ae94-29ff-7fe4-a472-48a3e0ef91e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075894
StatusPUBLIC

Content hashes

Canonical textd24d8272253fd13bbc800d91dd917b29b6c223e32c2a4c5743ed20a993d04681
Markdown293de6b2f93b99f8ccea9a96479c3b614263d920ec1f5c01031c098ecea657b5
PDF
Publication page00beaa6f11adf3ca5f5d6ef225909b47476c5851334342ad3f42fad427c086eb
Manifest5b1efcba2aeca56feef8a46a3d5ef9c293dbfed235fa9531e4f3cb17bcfa2002

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
Signaturer4opSiLs4n1cI5QBU5IE+h/25QhI9SMWmS3y0qlpbBJjJonhp8gR9FRC/PljFEU3Y6JZfpmHELa6TC7F5grLCw==
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

2026-09-17T10:14:41.290919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075894
observed 00beaa6f11adf3ca5f5d6ef225909b47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:41.271393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075894/manifest.json
observed 5b1efcba2aeca56feef8a46a3d5ef9c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:41.252278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075894/publication.md
observed 293de6b2f93b99f8ccea9a96479c3b61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:41.198221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075894/publication.txt
observed d24d8272253fd13bbc800d91dd917b29...
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.