OpenTechnical

OT-2026-000042409

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, sustained blow-off after 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-2026-000042409) never changes.

Identity and time

Publication numberOT-2026-000042409 · never reused
Internal UUID01a0ae7a-5d75-7bea-b3e4-3303f0402bae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042409
StatusPUBLIC

Content hashes

Canonical textf5c891952e0e7451dbf0ada99e68fc6c88374966cc2580db1fa80bd73a7577b2
Markdownb8d3b89e9ad47d7cd755093e62a8c6bf1d679b0c07a376d78c6f65292e956540
PDF
Publication page783d53d39b5c2ad901ff6a456513f2c777bc4b86ac236fdd555c6f52fa7d7460
Manifeste525a399f9dfc3fc005f166cfa245bf16d3d3cb4e2007ec58f0482e724e686ab

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
SignatureXB/xFY47iZ6lkNHyvpeMr37EhPon1sEf+YWRXt14v2DMGLhITxktTujYhvGdV44oy7JH4ac4ChEPd/VGQwUqAQ==
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

2026-09-17T11:16:12.359048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042409
observed 783d53d39b5c2ad901ff6a456513f2c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:12.341292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042409/manifest.json
observed e525a399f9dfc3fc005f166cfa245bf1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:12.322841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042409/publication.md
observed b8d3b89e9ad47d7cd755093e62a8c6bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:12.304121ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042409/publication.txt
observed f5c891952e0e7451dbf0ada99e68fc6c...
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.