OpenTechnical

OT-2026-000013729

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, 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-2026-000013729) never changes.

Identity and time

Publication numberOT-2026-000013729 · never reused
Internal UUID01a0ae6d-8de9-71d4-a113-4da7d71cb8e4 · 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-2026-000013729
StatusPUBLIC

Content hashes

Canonical textd15c61f84fa8b82964992c44ba494f3d7e636e3c77ab127662b40ab4f26e3808
Markdownc89970064b6e08f5c73ca631d638334e3c87383b0835d506a9b2bdc89fdd6938
PDF
Publication page5cb1d447ef1fd5884a65482124266a270fb3f7624680252a6802b3f9f0e2f4a4
Manifest9c5458f34277fdc10d23bab47f934ea1c7e6db1087fa64fcafb83e234f036ee5

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
SignaturezwuDCzuBXZNlNgZKaUu6ayZYEcbZuwhedsO2yICU0WVjfHGys+BI2M6NZ4Gm4u7k6vkY7VLAIHrfEuPdZ+vIAg==
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

2026-09-17T12:08:41.690245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013729
observed 5cb1d447ef1fd5884a65482124266a27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:41.670968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013729/manifest.json
observed 9c5458f34277fdc10d23bab47f934ea1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:41.653617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013729/publication.md
observed c89970064b6e08f5c73ca631d638334e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:41.633736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013729/publication.txt
observed d15c61f84fa8b82964992c44ba494f3d...
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.