OpenTechnical

OT-2026-000090495

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, single stage ejector, pressure sensor per zone, 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-2026-000090495) never changes.

Identity and time

Publication numberOT-2026-000090495 · never reused
Internal UUID01a0ae9c-7f2e-7f75-89a8-4760889a8ed8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090495
StatusPUBLIC

Content hashes

Canonical text5abcf51f47023e2e6bb6bea938aa5b752964ce3d79a39ea56919e1a53d85156f
Markdownff8dc75ab8909628116532f048a52f1c62012d833236f3cfc796547729d2571b
PDF
Publication pagee659a8bae0f26f6546c1ab50414612088ef579dd7eafb33f8d27e94afbe8d07b
Manifestebc060753bcc4b031294e317d03b378374c5186909c2100fa2e8e15efb911314

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
SignatureWUcXGIaqO4D6yuLKACVQ1WmtEgP5QZPRhy6cD3SKM7DYi+p7orDmosDvLBQC/tFESgn/a8rwipnF/+2EKALIAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:38.194868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090495
observed e659a8bae0f26f6546c1ab5041461208...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:38.178713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090495/manifest.json
observed ebc060753bcc4b031294e317d03b3783...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:38.012831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090495/publication.md
observed ff8dc75ab8909628116532f048a52f1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:37.995255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090495/publication.txt
observed 5abcf51f47023e2e6bb6bea938aa5b75...
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.