OpenTechnical

OT-2026-000005459

Publication integrity record

Porous face vacuum gripper, four outlet manifold, three stage ejector

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-2026-000005459) never changes.

Identity and time

Publication numberOT-2026-000005459 · never reused
Internal UUID01a0a939-ae05-7088-842c-9ca2bdc4e979 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:58:44.744520Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005459
StatusPUBLIC

Content hashes

Canonical text28e94832aa014d6afa9148c9c6b746354d07f0344384a27e80886218056f0b0e
Markdown9b76df4de5c02ea96e46a0b5ab9780dde87f8e753e48c66778daed687eea0df4
PDF
Publication pagec51b101c83d3128d8f6a6d7148b06d72b0c46211382fab9a20960220f65f8b97
Manifest8e5ed9c0e90d393885a17d3967613e2f85ffa51cd23a4906f61b07fa148d68b3

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
SignatureeL0TEWo9KXPUKQNdXuzgj3lAETkjjegiOEk2XUoOxDeb3DO/v5P9hRvl805MJBFCsexBge9fz3BAzRZfxq4kAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:07.122312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005459
observed c51b101c83d3128d8f6a6d7148b06d72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:06.983706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005459/manifest.json
observed 8e5ed9c0e90d393885a17d3967613e2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:06.970573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005459/publication.md
observed 9b76df4de5c02ea96e46a0b5ab9780dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:06.955368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005459/publication.txt
observed 28e94832aa014d6afa9148c9c6b74635...
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.