OpenTechnical

OT-2026-000007041

Publication integrity record

Porous face vacuum gripper, common isolation valve, pump fed, contact triggered, closed cell

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-2026-000007041) never changes.

Identity and time

Publication numberOT-2026-000007041 · never reused
Internal UUID01a0a970-89e0-7d3e-84f2-accf961f45f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:58:39.971022Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007041
StatusPUBLIC

Content hashes

Canonical text299bc9b7127ad43833cb12f2b57a6ba6b2b19faa8f1d9783d843f49fc1bf23e6
Markdownda8eb36499f4774013acefd77913f13ecbe5b7e266da6ee20b32400e417f7f6d
PDF
Publication page7304e90006c6a901ab8f2673bbf90df43a1c4071403d9687189c58502e0a97c2
Manifestb909496b26e37d918a9e5fd971d30e585578cbe276701d98310dac7636d38c75

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
SignatureonEbBsBhr0jItrsGJK79wosI71GAx2V90aUVtiV3NcynMifQw+hMWT4O1zUl0GDpmkvm8I4h23eGUe5t6WZ6Ag==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:08.703497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007041
observed 7304e90006c6a901ab8f2673bbf90df4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:08.691266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007041/manifest.json
observed b909496b26e37d918a9e5fd971d30e58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:08.679299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007041/publication.md
observed da8eb36499f4774013acefd77913f13e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:08.667206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007041/publication.txt
observed 299bc9b7127ad43833cb12f2b57a6ba6...
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.