OpenTechnical

OT-2026-000004184

Publication integrity record

Porous face vacuum gripper, six outlet manifold, plant vacuum fed, contact triggered on the face

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-2026-000004184) never changes.

Identity and time

Publication numberOT-2026-000004184 · never reused
Internal UUID01a0a911-0efa-7e1f-ad49-519f76b71504 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:14:22.589042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004184
StatusPUBLIC

Content hashes

Canonical textf0a2a2d3090a54484e44727f5872b1ce00d20b3de3745aef8f47ae7b3f7a03fc
Markdown343eddb0fc601faac4343af19cd6b8a35d8cf0c647c0d009e7600f0c3e5cac18
PDF
Publication page62bd8ee8ccefccc809f91ded1e6a21301ca608e31c593cc114fe40b4331583e1
Manifest07df450b35229aec44f3536209c185acdf39dad6871d2341a4cae9937ec464d1

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
SignatureXb8KNGsmgOQNXREoZpCFvWUO+L9smUdo57xBz1iZypkfbWob9Ok1p6zUHZFR93rJRNEa0DxL9Q423duK7kQOCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:26.706413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004184
observed 62bd8ee8ccefccc809f91ded1e6a2130...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:26.690191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004184/manifest.json
observed 07df450b35229aec44f3536209c185ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:26.675395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004184/publication.md
observed 343eddb0fc601faac4343af19cd6b8a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:26.658510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004184/publication.txt
observed f0a2a2d3090a54484e44727f5872b1ce...
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.