OpenTechnical

OT-2026-000083543

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, 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-2026-000083543) never changes.

Identity and time

Publication numberOT-2026-000083543 · never reused
Internal UUID01a0ae98-0415-7942-a417-1a9a7d7d1eb3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083543
StatusPUBLIC

Content hashes

Canonical textfeba8fca6a660d9f0b5b97d832df9a0a11fb4edabac0d2021fc9e7b2a4db730b
Markdown22f6549fe9698c67d5eccb5c0a429a94fdfa5f7cc4602762906bb02546f71586
PDF
Publication pagec9263bb79baffb38337645fdb9fb668a3d87053c0199388f67b28479e9f321ff
Manifest4213e9190a7d49b17c2af3b23a7f7ae6adc8c1322ea7d67b237867d448d226fa

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
SignaturerWg+l8UlCtJZ6Z5ONq9zY3/OtOstcxvoqU0BbIicZ4NOxZ06PSov0MhYtZH9q+KYMiMsWxRF8tGrgTR7ZQoKBg==
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

2026-09-17T09:57:01.492696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083543
observed c9263bb79baffb38337645fdb9fb668a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:01.476082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083543/manifest.json
observed 4213e9190a7d49b17c2af3b23a7f7ae6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:01.460904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083543/publication.md
observed 22f6549fe9698c67d5eccb5c0a429a94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:01.444848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083543/publication.txt
observed feba8fca6a660d9f0b5b97d832df9a0a...
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.