OpenTechnical

OT-2026-000067894

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, single stage ejector, pressure sensor per zone, 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-2026-000067894) never changes.

Identity and time

Publication numberOT-2026-000067894 · never reused
Internal UUID01a0ae8f-c4fc-74f8-b01b-1660e8b7aa54 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067894
StatusPUBLIC

Content hashes

Canonical textd4e5a2b41f81b317523245e8703caf8bfa59fbbb5c054c22bf2d1d36822c9a8a
Markdown7c880eb2b04e231dbdb7071dc7867f17f18acc750c0c14a920063a5386be5d8f
PDF
Publication page542806739e917f9b33b5a0e0c552b440cf98ded6c7070ba1c89173a6b7579deb
Manifest72a23075965460e80262dbbcbb0e5ab46da553b5e37b52cb962295010ab88e1a

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
SignaturezYRxPMK4KUMToYaznBQ32dnH4Vhb+ExAwq498NVMDYJmR7jPXKlduISBfiwmatc7GNrLbVUnWWod2Ybrq8wWCQ==
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

2026-09-17T10:30:17.552377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067894
observed 542806739e917f9b33b5a0e0c552b440...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.533544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067894/manifest.json
observed 72a23075965460e80262dbbcbb0e5ab4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.515449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067894/publication.md
observed 7c880eb2b04e231dbdb7071dc7867f17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:17.497871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067894/publication.txt
observed d4e5a2b41f81b317523245e8703caf8b...
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.