OpenTechnical

OT-2026-000006015

Publication integrity record

Porous face vacuum gripper, three zone face, common isolation valve, ejector fed, contact triggered

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-2026-000006015) never changes.

Identity and time

Publication numberOT-2026-000006015 · never reused
Internal UUID01a0a94c-543d-73aa-9883-daedcb36985a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:19:06.944302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006015
StatusPUBLIC

Content hashes

Canonical text877db383862a71e415129f2c085f6863d99fa736bdd0c0539a58bf70712e2f41
Markdown91c62e4b03300392ff44d519e192d75d3f8841b06eabb50b79ae9f981095cc29
PDF
Publication page319227a5d8a05acde038f3fbed910451c5f5f77793e8ba09907c2f3d791da8ad
Manifest44918d2c025b8fcb4ed43267767c2d0ce6b3a0958e780eaab68d01d6122cb119

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
SignaturewKK0mGLQM/dMc48WOBTP+D8HHKdWXabaZc0MCdTiblZ2JqM7AA0nbtOncc6cJB9NfgK9bXczUZygRDWjvEDzDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:05.439938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006015
observed 319227a5d8a05acde038f3fbed910451...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:05.425793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006015/manifest.json
observed 44918d2c025b8fcb4ed43267767c2d0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:05.411326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006015/publication.md
observed 91c62e4b03300392ff44d519e192d75d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:05.397820ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006015/publication.txt
observed 877db383862a71e415129f2c085f6863...
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.