OpenTechnical

OT-2026-000090678

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, pressure sensor per zone, 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-2026-000090678) never changes.

Identity and time

Publication numberOT-2026-000090678 · never reused
Internal UUID01a0ae9c-7f30-7eb9-b5ba-7958d40d464a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090678
StatusPUBLIC

Content hashes

Canonical text14402a9070eb379a399ecef85abf2abb0dc3a310cf6af410bf098322e45428c7
Markdown1baa7346a0ec4f3cc095c7f36bb077863f13d0e1a4674b5f23ae53e9bde87c6f
PDF
Publication page96ff25ce50f1e033c684f2fe42e8dc3d12eafb4baf70cab360d668c3c7eafa30
Manifestd2b6c42f48318b6d5351523d765b4bd45b2ad1f1d3e398ae3716d2f8e0e0e5f9

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
Signaturea9VZIzDu8PNz29aK2uzDW3hN3mvnQJkAzkW8M30b+vyReSSVQ14aFXswCHvkz53Dt4rccHzw0reQq2BRJsXnDg==
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

2026-09-17T09:44:52.503007ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090678
observed 96ff25ce50f1e033c684f2fe42e8dc3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.485968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090678/manifest.json
observed d2b6c42f48318b6d5351523d765b4bd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.468194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090678/publication.md
observed 1baa7346a0ec4f3cc095c7f36bb07786...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:52.451406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090678/publication.txt
observed 14402a9070eb379a399ecef85abf2abb...
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.