OpenTechnical

OT-2026-000013285

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000013285) never changes.

Identity and time

Publication numberOT-2026-000013285 · never reused
Internal UUID01a0ae6d-6fc9-7e86-94d7-1c8d497098ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013285
StatusPUBLIC

Content hashes

Canonical text2246651996b20e0c7bfe9d6c85493ea00dac1be764ca3d6758f1731dbfc9bf2a
Markdown7da803dfc578bf5ff45fe10c66061d93ee1de48145898a11df2679e83b366952
PDF
Publication page0dd2bba0fac7a06f6a08ebd51403629e44dfc44dda24a1d1f3ed1d691d7c2f62
Manifesta9e0a927d0862e3e83fc666a038f82c4d01bd6014bc113ac2c28e99cb41671da

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
Signaturewf1RgTcor0OhdmC1YxO2A6fV/TGWLW4BADJQ5wXV7CMyOswoVAyau/hHJsuocAyio8uqaCTraAySpaIV8vO6AQ==
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

2026-09-17T12:09:42.364693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013285
observed 0dd2bba0fac7a06f6a08ebd51403629e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:42.346478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013285/manifest.json
observed a9e0a927d0862e3e83fc666a038f82c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:42.328258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013285/publication.md
observed 7da803dfc578bf5ff45fe10c66061d93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:42.307664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013285/publication.txt
observed 2246651996b20e0c7bfe9d6c85493ea0...
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.