OpenTechnical

OT-2026-000030073

Publication integrity record

Two cup vacuum gripper, two outlet manifold, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000030073) never changes.

Identity and time

Publication numberOT-2026-000030073 · never reused
Internal UUID01a0ae73-ac4a-740a-8127-25adf6c597bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030073
StatusPUBLIC

Content hashes

Canonical texta98c804307ed013f0a75ed3da1bb09a1540d96499d08961861d1b8abd1e77188
Markdowna3f7e660836921243c8c78296061a7dcee0287a417560cd1692ac018a69a57f9
PDF
Publication page348f6464c01ec5e39c4144fc4f9f8c3cbaab1b2eb9099c33ec5069bbc6a89daa
Manifest4c9b49d83e01854a90c4c9497b0623fbd9bd498a04e9e4916cd1ac8e233c0b3f

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
SignaturelneFUItyb0iVn1e3M3Gr2SMnm6MKMTOimCkEUVz3gXXwaoOXMCxS6xSWuC85uFjUUUMQo1O9lrYmmMgRXFVGAw==
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

2026-09-17T11:38:49.095526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030073
observed 348f6464c01ec5e39c4144fc4f9f8c3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.046144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030073/manifest.json
observed 4c9b49d83e01854a90c4c9497b0623fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.015844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030073/publication.md
observed a3f7e660836921243c8c78296061a7dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:48.997845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030073/publication.txt
observed a98c804307ed013f0a75ed3da1bb09a1...
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.