OpenTechnical

OT-2026-000090134

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, manifold pressure sensor, sustained 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-2026-000090134) never changes.

Identity and time

Publication numberOT-2026-000090134 · never reused
Internal UUID01a0ae9c-428f-7228-a804-15773c3b9170 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090134
StatusPUBLIC

Content hashes

Canonical textef3c0d2d76555daec2589e3e6e6affeddb24ce31122ddbc30086e3b33b910a41
Markdown71eb631457ee2155396516f40ce85235b54e60ad79cb1c971f6be640e5e78b01
PDF
Publication page5cfc45560fbe8bdbb8232fdfc25cb53810ce0cc58c399205f8aadf4a8868e9c7
Manifestfc49ffbbe3558c9ae92449f4f58c5bc4e1483edccc65356aa029d72c2ff220ad

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
SignatureQxRoS0OZqeDAa9jxCRMslIELM0srzqinBx4oEJqkyf5jC+pZTAJ7ci6/nV0A2rvXMnkIlrVkvaNlqqCwZ9qxAA==
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

2026-09-17T09:45:34.352913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090134
observed 5cfc45560fbe8bdbb8232fdfc25cb538...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:34.336326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090134/manifest.json
observed fc49ffbbe3558c9ae92449f4f58c5bc4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:34.318874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090134/publication.md
observed 71eb631457ee2155396516f40ce85235...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:34.301122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090134/publication.txt
observed ef3c0d2d76555daec2589e3e6e6affed...
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.