OpenTechnical

OT-2026-000048367

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, 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-2026-000048367) never changes.

Identity and time

Publication numberOT-2026-000048367 · never reused
Internal UUID01a0ae80-4de4-7ecd-ad55-05e0a5159d46 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048367
StatusPUBLIC

Content hashes

Canonical text4a530ad9f923b587e0c6d2ea466daf5068d2af77f7565dd62902c1950c9d6f21
Markdownb05f70c8e3b426e1292391b6133bcc4987ab4d3d1d17158a77ac7f21c8e3f851
PDF
Publication page49a083c6c7e5f6a7da985190e20579178dc3f0b3c5a5d9695fc95a9c3b869018
Manifest85104df5bc342a003cd524567fd38a9f1e161ace0b4fb88207bdfabd6c29d21f

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
SignatureyOLcklS1LvwBqs0TrrJHv1GfBeCezNPQuyhOS03ykWQ/9NI3Q08y2mQGxPUyOOxX4vax6xdYaaj6DxILge8aCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:04:59.393482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048367
observed 49a083c6c7e5f6a7da985190e2057917...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:59.374391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048367/manifest.json
observed 85104df5bc342a003cd524567fd38a9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:59.355110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048367/publication.md
observed b05f70c8e3b426e1292391b6133bcc49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:59.336430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048367/publication.txt
observed 4a530ad9f923b587e0c6d2ea466daf50...
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.