OpenTechnical

OT-2026-000013813

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, pulsed blow-off before 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-2026-000013813) never changes.

Identity and time

Publication numberOT-2026-000013813 · never reused
Internal UUID01a0ae6d-8de9-7db6-875c-7a0868251614 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013813
StatusPUBLIC

Content hashes

Canonical textd6ed7a1b10a0aeef00c60305552b2f70f0e316aad8aa72ff4a789570d21cf014
Markdowne923f891908b19c02ae3d01c6bf585cf44391c1557a903cce1e3df2d8948e1f2
PDF
Publication page9ad8b96da6da0cf13dd7341d2e65422763c413bbb3d5d51e25dc4e8b78bb2a4f
Manifestc133a787e110cd50013d0dcdcdf3e9372400b74797225b53f3c95f2a69d399e7

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
SignatureriF7JwE4r/s4esOzDSigTAu0lvoz/j5LMEK72bk3wbXBGrqlRwzpCamTpu+Fr/mg+H+CbljuwBHYD7FG7xAJDA==
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

2026-09-17T12:08:54.551008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013813
observed 9ad8b96da6da0cf13dd7341d2e654227...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:54.533300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013813/manifest.json
observed c133a787e110cd50013d0dcdcdf3e937...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:54.515909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013813/publication.md
observed e923f891908b19c02ae3d01c6bf585cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:54.497396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013813/publication.txt
observed d6ed7a1b10a0aeef00c60305552b2f70...
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.