OpenTechnical

OT-2026-000004207

Publication integrity record

Porous face vacuum gripper, four zone face, six outlet manifold, plant vacuum fed

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-2026-000004207) never changes.

Identity and time

Publication numberOT-2026-000004207 · never reused
Internal UUID01a0a911-69b1-7474-a681-c9386deb1a96 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:14:45.813314Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004207
StatusPUBLIC

Content hashes

Canonical text23b112eeee570f2a042472698b744b806621807eb7a113ccaea25d4ae333eac2
Markdown6a3174fe074626dd90ba88659a6a8aef23ec6745d1068225540eeee60da0c3d1
PDF
Publication pageab51d3a351cd2f40fad307ea75ba70ed528aad96947a7ed8d32f9ac48e81a80c
Manifest8be164e400dfe455457aaa08524eb289b4aaab00e96305e6e8ed7c0a70182c0a

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
SignatureS39YRKNa91/PVLrNqHiwgaEAAsao+f/a4MIJtsmuJo2/8vxfzF4407kn0OkcD4qP4mbcjOM1he9GDMY+RCijBQ==
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

2026-09-16T07:20:23.984122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004207
observed ab51d3a351cd2f40fad307ea75ba70ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:23.970616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004207/manifest.json
observed 8be164e400dfe455457aaa08524eb289...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:23.957366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004207/publication.md
observed 6a3174fe074626dd90ba88659a6a8aef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:23.943996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004207/publication.txt
observed 23b112eeee570f2a042472698b744b80...
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.