OpenTechnical

OT-2026-000004200

Publication integrity record

Bellows cup vacuum gripper, per zone isolation, four outlet manifold, plant vacuum 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-2026-000004200) never changes.

Identity and time

Publication numberOT-2026-000004200 · never reused
Internal UUID01a0a911-4e43-79dd-bc1f-893e2ceb127b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:14:38.790109Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004200
StatusPUBLIC

Content hashes

Canonical text0db473cf4fd102526de5280c0f57e6adc12fd015b18eff0c93a78b92593110b2
Markdown31cf19ec5e2c722844eafbff9dd2719a398db64cd3975e89d7e14727b5d7c49d
PDF
Publication page047355e2850489798d8648ffa9d412431fd9d9f8cd58d0eda237d7930d6b7913
Manifest0193d86f09a06abad20abc4bf542809013fd676a7b352336d57655fb74503a79

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
SignatureQwsck1XWZTSLwZWZ5SNvCzhoCKhce6r3dKvcy+OsLYb+TRx3zzushQewt92XyoA+zZKZHvPaE3ttYSfklh71Bw==
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

2026-09-16T07:20:24.741718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004200
observed 047355e2850489798d8648ffa9d41243...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:24.727186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004200/manifest.json
observed 0193d86f09a06abad20abc4bf5428090...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:24.711326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004200/publication.md
observed 31cf19ec5e2c722844eafbff9dd2719a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:24.694153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004200/publication.txt
observed 0db473cf4fd102526de5280c0f57e6ad...
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.