OpenTechnical

OT-2026-000004361

Publication integrity record

Porous face vacuum gripper, common isolation valve, two outlet manifold, ejector 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-2026-000004361) never changes.

Identity and time

Publication numberOT-2026-000004361 · never reused
Internal UUID01a0a915-2bdb-7087-93f5-3a723fd76119 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:18:52.126810Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004361
StatusPUBLIC

Content hashes

Canonical texte6bfac0aa184d7a1311ec7d8449941cf1f8d0d773ee7706570480d6b65fe4415
Markdown73ba988a04c3ae7930d94a7fea70a3ad66ccfe5b221a77e6f5682bf8ce0706d8
PDF
Publication pagecc095a07aacfb0d14271a4796ac0298a9f5f15be96a8aae499002d20a1aeb8f0
Manifest57946511fa946061f944c8a1bd43852968dfa643f7196d7f42caa11544a3c400

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
SignatureHKQsgj59YpQ0OtPQ+MnVaXWzdTPDGQ/KTEx04D89ODgkiUwsWKQV7x0u6a7fRQRe2jp8CAfK4dmXt814kaUfDg==
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

2026-09-16T07:20:06.647356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004361
observed cc095a07aacfb0d14271a4796ac0298a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:06.633873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004361/manifest.json
observed 57946511fa946061f944c8a1bd438529...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:06.620749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004361/publication.md
observed 73ba988a04c3ae7930d94a7fea70a3ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:06.482205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004361/publication.txt
observed e6bfac0aa184d7a1311ec7d8449941cf...
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.