OpenTechnical

OT-2026-000003912

Publication integrity record

Porous face vacuum gripper, four zone face, six outlet manifold, three stage ejector, 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-2026-000003912) never changes.

Identity and time

Publication numberOT-2026-000003912 · never reused
Internal UUID01a0a90b-7016-7174-a660-1cfc70606b1a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:08:14.233609Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003912
StatusPUBLIC

Content hashes

Canonical text7a4a791e96469d7323e9be48d2646f4f0fd113fca5a85b12356622463122757a
Markdown0cae9b5a503276f0cefea8a31b0d0914581b714b0cdb7d50cf56e8bb00b052f4
PDF
Publication page707eae52101f6633873e16dedb807deb93b7cc8af02ec12d5613a94eca4e015b
Manifest8d780981fd1a3bc5e78573d2d4cce1834f072f0d664a459616615849c068fce1

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
SignaturewrsghpIOd0wXuPrnflgUwR7/0POVto/9erABg/jm2dDpmYU1IydDVRfA82p00/XvLnqIYt/RgBT5C4Ny6dNbCQ==
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

2026-09-16T07:10:12.734077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003912
observed 707eae52101f6633873e16dedb807deb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:12.720561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003912/manifest.json
observed 8d780981fd1a3bc5e78573d2d4cce183...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:12.708132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003912/publication.md
observed 0cae9b5a503276f0cefea8a31b0d0914...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:12.695335ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003912/publication.txt
observed 7a4a791e96469d7323e9be48d2646f4f...
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.