OpenTechnical

OT-2026-000028555

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, three stage ejector, pulsed 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-2026-000028555) never changes.

Identity and time

Publication numberOT-2026-000028555 · never reused
Internal UUID01a0ae72-e2f8-75e8-9bd3-8db9578b6b9b · 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-2026-000028555
StatusPUBLIC

Content hashes

Canonical textc9d28132dd28a5396f835cd6acab3e40cd504e8b3e208c8d53db8fd50a5db69d
Markdown69539443c7ffbd2cf36660c8c5d30b7c059f8620615d67042aa36362db4248ef
PDF
Publication page011cf3010d309f97696154beb1c72228151416c5ab71913ca0e2408812f22a3c
Manifest3da6dda7051d1e2d2986cbc538721ec75564754226fdd603b16d31da606a71c2

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
SignatureERor2e5t64upQBDxfLWUfUFfGg5oAAieN35Z6ur5zcOjgP5Fog7hH2xYZ0KI0d2zIxDYD5AIXtXmSvJqPSqpDQ==
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

2026-09-17T11:40:50.351388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028555
observed 011cf3010d309f97696154beb1c72228...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:50.333549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028555/manifest.json
observed 3da6dda7051d1e2d2986cbc538721ec7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:50.315054ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028555/publication.md
observed 69539443c7ffbd2cf36660c8c5d30b7c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:50.296530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028555/publication.txt
observed c9d28132dd28a5396f835cd6acab3e40...
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.