OpenTechnical

OT-2026-000081926

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after set-down

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-2026-000081926) never changes.

Identity and time

Publication numberOT-2026-000081926 · never reused
Internal UUID01a0ae97-0f76-74b5-abbb-711878ee6f2a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081926
StatusPUBLIC

Content hashes

Canonical textf54c17d43d7006a917b5737c86b0cfc9a7785da2716f81e5bc3209b5eecb454a
Markdown77476de68f5f05c587e1139017c1fd622869b1577eb2c649c265dd8db578a7dc
PDF
Publication page773190a2913963ac217224a4bea5d1be14f88efa06f32bb23e187e37d7f382b8
Manifestea6984eba491483997e036c64c2bb250f936fdcd90708dc5ee052e15b14f6d53

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
SignatureWR80nZt7TfmKV816d+ssKTjCASKlJopFigj5cNf0i3NM13VGovcicZbUruYT0VcZP0FBgD5QjILBVuL4NLnKDg==
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

2026-09-17T10:01:03.371613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081926
observed 773190a2913963ac217224a4bea5d1be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.354992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081926/manifest.json
observed ea6984eba491483997e036c64c2bb250...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.336914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081926/publication.md
observed 77476de68f5f05c587e1139017c1fd62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.319650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081926/publication.txt
observed f54c17d43d7006a917b5737c86b0cfc9...
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.