OpenTechnical

OT-2026-000074909

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074909) never changes.

Identity and time

Publication numberOT-2026-000074909 · never reused
Internal UUID01a0ae93-ac2d-716a-981e-8ecf2db98202 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074909
StatusPUBLIC

Content hashes

Canonical textc081ac8c76b0ef776c4d51949ecfb37e9d0d934ce3f67b408c355883939eb9d9
Markdownf44c26f9aed24e8d36807a757fc4136e3df2e8ca98a25935d46fc65c3c465f11
PDF
Publication page3ef37effb189cad7398b683d2e408f715ab0440d0062a806cb41e71ba9aab91a
Manifest8af11b7de28df7f0054a9046b0d935ecec7830a6c3829f6de303d2293c774a47

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
SignatureMZ9v8/8JKY0Ga0G8sdP1w2mseWJjMhhNb41lYBeoddp4+FbKiZb+rrnvpATxnaamYXF75TIEyDnoKrUe+0JlCA==
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

2026-09-17T10:18:37.982788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074909
observed 3ef37effb189cad7398b683d2e408f71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.965283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074909/manifest.json
observed 8af11b7de28df7f0054a9046b0d935ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.947233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074909/publication.md
observed f44c26f9aed24e8d36807a757fc4136e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.928483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074909/publication.txt
observed c081ac8c76b0ef776c4d51949ecfb37e...
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.