OpenTechnical

OT-2026-000090914

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, three 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-2026-000090914) never changes.

Identity and time

Publication numberOT-2026-000090914 · never reused
Internal UUID01a0ae9c-c011-72cc-b252-902e51dcdc29 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090914
StatusPUBLIC

Content hashes

Canonical textb57e7026e5fed6789e76ad64290510529c200ba96f52c4a99cbbdab38d988c6e
Markdown9bf3055d2a6497052360ed2802b2935a0d75d79c32346e45e728520c5da09c81
PDF
Publication page4302e666b17fc5c1fb2cd4aaa3b1ac968529002796dfa28120c8158039a0479a
Manifest4670ddd6be96ce033b64cfa8afa43d1c4bcd14dc9318abc67808eef3ac793dd7

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
SignatureCEaMOpKfjAlqY67yB/6iD5xQE1huWsjck1SeXYA4Zf8T2ZViukmDgcy9Gir6+3BnVruOG79JqMM30LwhkPyRBg==
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

2026-09-17T09:44:07.651467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090914
observed 4302e666b17fc5c1fb2cd4aaa3b1ac96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.632839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090914/manifest.json
observed 4670ddd6be96ce033b64cfa8afa43d1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.615235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090914/publication.md
observed 9bf3055d2a6497052360ed2802b2935a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:07.596609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090914/publication.txt
observed b57e7026e5fed6789e76ad6429051052...
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.