OpenTechnical

OT-2026-000090002

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000090002) never changes.

Identity and time

Publication numberOT-2026-000090002 · never reused
Internal UUID01a0ae9c-428e-76ba-99b4-5858c8aee824 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090002
StatusPUBLIC

Content hashes

Canonical text2fb7aa6fd11d30e0ed81196720d8fd785b631c2edf200fde90bd7db9ec80020a
Markdownbe3164773c08ff2470578055a2403a069c9f99a2d9cbc28fadd893cb53626eb6
PDF
Publication page9e04f66fef8f2991cb7fea9dcf3fcebb9464675c641343faf9c07726821a7147
Manifest3cb4279272f25a09b8c83b5d4115e4f0f27b346432a829abfcc572ddcd446efa

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
Signature70aUb000J3QMQRzgP96RVCHrJkknJflYcbswN4xpw4dBWFEQ6wCpP3yiNpEIs5bjGcUFmAwwoNElxeC7dhtOCw==
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

2026-09-17T09:45:23.622505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090002
observed 9e04f66fef8f2991cb7fea9dcf3fcebb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:23.603956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090002/manifest.json
observed 3cb4279272f25a09b8c83b5d4115e4f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:23.586760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090002/publication.md
observed be3164773c08ff2470578055a2403a06...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:23.542507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090002/publication.txt
observed 2fb7aa6fd11d30e0ed81196720d8fd78...
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.