OpenTechnical

OT-2026-000091067

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000091067) never changes.

Identity and time

Publication numberOT-2026-000091067 · never reused
Internal UUID01a0ae9c-c012-7622-92e1-d68a2bd64c12 · 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-2026-000091067
StatusPUBLIC

Content hashes

Canonical textddd4267ed104d0eb8b9db0f6491d38983d79c1cc8e6b720d2302213d8ea29354
Markdown2ce715b9adb706a6e9075970450e36e5fe9bf388dd926732355df913b8eca02f
PDF
Publication pagec10768f4753e52dd4ba98438bb0a66324a3167f90274e04e83a26382becc5388
Manifest5c2a737b1ea8e7b4efda61f82005d9e07938036b8856dc73af778acf9227f269

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
Signatured0yKIxkaxHLNKjlPTO3I/+XYf/h2pJeMnaec6TGtSuT93Y0lx6devFXV2FANmrm7eX8SQwNG5DnmbDgGQ1m/DQ==
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

2026-09-17T09:44:18.612715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091067
observed c10768f4753e52dd4ba98438bb0a6632...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:18.593952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091067/manifest.json
observed 5c2a737b1ea8e7b4efda61f82005d9e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:18.576801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091067/publication.md
observed 2ce715b9adb706a6e9075970450e36e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:18.559627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091067/publication.txt
observed ddd4267ed104d0eb8b9db0f6491d3898...
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.