OpenTechnical

OT-2026-000020073

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, 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-2026-000020073) never changes.

Identity and time

Publication numberOT-2026-000020073 · never reused
Internal UUID01a0ae6f-1fb8-7b24-a124-bdacd7174e7e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020073
StatusPUBLIC

Content hashes

Canonical text4ad2732729c95b507d33da242eb9816d7ac622ca9078459b656103c5111627b2
Markdown4b5ad31739699ecbcbf46f3550cf61550991e75465b0a7abd75311a517a88680
PDF
Publication pageef9ee86e3d2893e084243d0efba9ea12dbf61299fa2659fe041cc1ec89ad780a
Manifest72359e8de716b876b5db4f7347795b93341749481f54c5693a272469701b22a9

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
Signaturew6P+/NePsZOhs+aVYV0f/nadJRaP9+WfRNU1adcqCi8ql7lJmeuXnSggto+nBnHx0s0/wjyu6j8Glvk5IuuqCA==
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

2026-09-17T11:58:20.779415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020073
observed ef9ee86e3d2893e084243d0efba9ea12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:20.757471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020073/manifest.json
observed 72359e8de716b876b5db4f7347795b93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:20.741277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020073/publication.md
observed 4b5ad31739699ecbcbf46f3550cf6155...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:20.722058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020073/publication.txt
observed 4ad2732729c95b507d33da242eb9816d...
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.