OpenTechnical

OT-2026-000091562

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000091562) never changes.

Identity and time

Publication numberOT-2026-000091562 · never reused
Internal UUID01a0ae9c-f16e-76df-b6ad-df165d55fc31 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091562
StatusPUBLIC

Content hashes

Canonical textd437ad0d1daafa3e3c85ce73e94c2883612fab36afac36ec743b7880b87a5361
Markdown42c8e4fdd0625a8033ddef68c3e6da31d47b50a2a440a1c9a973ba7c0c64e81b
PDF
Publication pageb2735960b1ccd6d7875e9d4de7899f09c613ff91d72fb11e32a9d480f0fbf63a
Manifest553c154dc4208577d8636f7891878bb557fab458f5fbb075c568cb85d410b359

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
SignatureTanWPepJ4rCO+GCrMhq6g8Jgs0fzu7gwj89lODvvVDcU4kC/c++KhIQFWjGxMwzXZ3jjBIo2bl2ZrG+1DNw/Ag==
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

2026-09-17T09:43:49.926932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091562
observed b2735960b1ccd6d7875e9d4de7899f09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.910179ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091562/manifest.json
observed 553c154dc4208577d8636f7891878bb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.891774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091562/publication.md
observed 42c8e4fdd0625a8033ddef68c3e6da31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.873424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091562/publication.txt
observed d437ad0d1daafa3e3c85ce73e94c2883...
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.