OpenTechnical

OT-2026-000091556

Publication integrity record

Two bellows cup 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-2026-000091556) never changes.

Identity and time

Publication numberOT-2026-000091556 · never reused
Internal UUID01a0ae9c-f16e-7579-9cd9-211eb948de37 · 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-2026-000091556
StatusPUBLIC

Content hashes

Canonical textbfd3448f1cee7ab33f402b42f33e53730e4c7d58438e30248192f434e36def43
Markdown16b82ec984597acc45059d4d1e33100d8851556000c1a8127e2fe15445577dd6
PDF
Publication page5a6844d318cf599e123a6ca8a39b324fec0ada30780777cb6b10a52238b47bbb
Manifestc662effa4e64eb38220bf6c0a2d2c1df5b312faedc7dd7cc51a4fbfbb771c26f

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
SignaturekMkELIu4tYFI7CJVLCtUCRnZ7wmxfny8lB2U9FdlX6Ep7hpfjS/JhjHuW2SFxQwiHAJNTgFRcGqdHIUKzQVACQ==
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

2026-09-17T09:43:49.521679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091556
observed 5a6844d318cf599e123a6ca8a39b324f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.505490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091556/manifest.json
observed c662effa4e64eb38220bf6c0a2d2c1df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.488957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091556/publication.md
observed 16b82ec984597acc45059d4d1e33100d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:49.473049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091556/publication.txt
observed bfd3448f1cee7ab33f402b42f33e5373...
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.