OpenTechnical

OT-2026-000072438

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000072438) never changes.

Identity and time

Publication numberOT-2026-000072438 · never reused
Internal UUID01a0ae92-89d7-7c6e-b3d1-41a9e319e7f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072438
StatusPUBLIC

Content hashes

Canonical text08985a89a486936b51f0cbf6aca22fb2bcd6f21cf3bb71e3273ff35a393349f5
Markdownd0da41887444fd0a86e85422c345772c39c8e4bac4c17585c88aeef4fe3f9798
PDF
Publication pageb9270fb3e625cc3db6efa592ff52b95d7813133338f26d2e768ed0ef1918cf80
Manifest5b211ffccdc655aebbdab50e7c36b557f96921bbcd48190cfe177b4e9d51607a

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
SignatureXNeDXmI1qZM7++0d9VVIenzvrBuzQAFsqcMLq+vSLMoO75eOPFGM+PU3p1SiGOyLf5Visx+q+bjOueUTZMSQDw==
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

2026-09-17T10:22:15.297750ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072438
observed b9270fb3e625cc3db6efa592ff52b95d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.279208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072438/manifest.json
observed 5b211ffccdc655aebbdab50e7c36b557...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.263826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072438/publication.md
observed d0da41887444fd0a86e85422c345772c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:15.245950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072438/publication.txt
observed 08985a89a486936b51f0cbf6aca22fb2...
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.