OpenTechnical

OT-2026-000067451

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000067451) never changes.

Identity and time

Publication numberOT-2026-000067451 · never reused
Internal UUID01a0ae8f-6bd9-7faa-9e2c-10ca3b28d6a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067451
StatusPUBLIC

Content hashes

Canonical textc053a0d16b50f2860d696ccb3dbb9c1e244a5dfa525fe39f01de463cd936d148
Markdownccd4aad6a015be4746890511adfaea831f618eb1978e4a45d28282b4e0941279
PDF
Publication pagebe9ac77969203e9af7c9c301a2fc42f67ed3c0ad01206b59826e6ea33e03f7ea
Manifest5ee588f68466bd787531f953e03e49fe5b74417ce6def5385324e13390880268

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
SignatureuICZHCIv2AC0YOwZxkeSUV/GrDCL9GMo399jrJVYcXAn/o9Xox8epxa9kRm5ixiMpXV0jAgcr9wd3blGv/VTCg==
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

2026-09-17T10:31:39.382115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067451
observed be9ac77969203e9af7c9c301a2fc42f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:39.363981ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067451/manifest.json
observed 5ee588f68466bd787531f953e03e49fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:39.348310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067451/publication.md
observed ccd4aad6a015be4746890511adfaea83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:39.331324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067451/publication.txt
observed c053a0d16b50f2860d696ccb3dbb9c1e...
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.