OpenTechnical

OT-2026-000074351

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, pulsed 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-2026-000074351) never changes.

Identity and time

Publication numberOT-2026-000074351 · never reused
Internal UUID01a0ae93-7179-704c-8e8a-22321a8698cb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074351
StatusPUBLIC

Content hashes

Canonical text42ebca45da3791b6fe9f7071cd444758a52e1ff78ccda024261d56e3b7707d34
Markdowncc8485a4e4445b1a7764f78496c73a01a7791c9695cd0f73fcb01da6fc870004
PDF
Publication page5826507e5657fe17dd565d83722131507bfafe21258336a11eb0b8e482e1d5f4
Manifest465eb3f1c9f7d6e4d0d755d1f1153007487524af0c6102789a1d2b68c899852e

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
SignaturegzjMtYocQT7U+EQVeaKWF8UWytMvTs0hcTqhzT+SHJuGqB0w0Nvcz9HPQpZmCC2yYXzgRtA+ORWlUl0rryAcCA==
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

2026-09-17T10:19:16.565848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074351
observed 5826507e5657fe17dd565d8372213150...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.548448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074351/manifest.json
observed 465eb3f1c9f7d6e4d0d755d1f1153007...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.509175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074351/publication.md
observed cc8485a4e4445b1a7764f78496c73a01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:16.490799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074351/publication.txt
observed 42ebca45da3791b6fe9f7071cd444758...
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.