OpenTechnical

OT-2026-000030448

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, sustained blow-off before 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-2026-000030448) never changes.

Identity and time

Publication numberOT-2026-000030448 · never reused
Internal UUID01a0ae73-e503-7a3e-a657-b531ecc62422 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030448
StatusPUBLIC

Content hashes

Canonical textaae3053eca3afbbd4df871da77acce861df72b26b76550459ca273a1f6225bb6
Markdowna377de83c0bab042c10c203abb6bde0784b7eaf1b718bfa7b87edb700c61e2a5
PDF
Publication pagef4b02c8f30bcc7da040f0efd39ee96164d20c460b1c9ef21cce0787e0c492ab9
Manifest04c601357c833562daa2dc30626a2153e480c0cd5670c13207feea69fbbee683

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
SignatureSfEVhXA2tt5jqFF576IHyHiyC9tHr2KJas0Larztk48x4eOVLacMSGp9JWyLJGwuOIIVl9tbqv67LV/hEFlDDg==
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

2026-09-17T11:38:11.462030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030448
observed f4b02c8f30bcc7da040f0efd39ee9616...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:11.442266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030448/manifest.json
observed 04c601357c833562daa2dc30626a2153...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:11.424605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030448/publication.md
observed a377de83c0bab042c10c203abb6bde07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:11.406375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030448/publication.txt
observed aae3053eca3afbbd4df871da77acce86...
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.