OpenTechnical

OT-2026-000028694

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000028694) never changes.

Identity and time

Publication numberOT-2026-000028694 · never reused
Internal UUID01a0ae72-e2f9-798b-90f7-97989333a346 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028694
StatusPUBLIC

Content hashes

Canonical textef41f5e46fc837cc8d7c97a4edf8bdff0b9e2408a5d77631ef43e5de074968fd
Markdowna73940ffdc22992c47e744fb42b9749efba84129a4691a4124bdc5c7977c55d6
PDF
Publication page89f92f89a832c4f3094fd61d039ddd1931253127b6f34b68c2a7d8bfe9b32351
Manifeste7406a4f00cfd78c4dd8594e327c3eca08069963163688b32ecbf8524869be3e

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
SignaturePwwUiKvN+HY1ZlyjnoVccUNZdlwlYkEesptrpBjs+YvZkMtumg65wg90bYFUc5wXNVbjDppauX06jGS/b/B0BA==
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

2026-09-17T11:41:41.327497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028694
observed 89f92f89a832c4f3094fd61d039ddd19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:41.304290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028694/manifest.json
observed e7406a4f00cfd78c4dd8594e327c3eca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:41.283342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028694/publication.md
observed a73940ffdc22992c47e744fb42b9749e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:41.259657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028694/publication.txt
observed ef41f5e46fc837cc8d7c97a4edf8bdff...
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.