OpenTechnical

OT-2026-000006347

Publication integrity record

Porous face vacuum gripper, two outlet manifold, plant vacuum fed, pressure verified, 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-2026-000006347) never changes.

Identity and time

Publication numberOT-2026-000006347 · never reused
Internal UUID01a0a957-d1ba-7897-9eb1-66209f865417 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:31:39.965167Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006347
StatusPUBLIC

Content hashes

Canonical text2eac7a839d7e75a5ca917633c353e49b32af68631d1f509f451a3e497214cbf9
Markdowna45c10faa580975c066e8955c901c1ccef246d2a3ad5b060aa97474dbe31e51b
PDF
Publication paged695ff257fc9f8d366965fb63671ace3a70c148978903b1532ab132f94d8d30f
Manifest02d6d6aa39edb3a5ef3dab0db698a95304db59ddf186ccc1992a50863e894d70

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
SignatureI1epu+RIIzqZRB+qMyXyleLJl/933t/A6e2s8BEFiIyOymB3jVzpG0O8gibpddsz3IEVLNjxII+yXHAfK94XAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:28.648020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006347
observed d695ff257fc9f8d366965fb63671ace3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:28.631621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006347/manifest.json
observed 02d6d6aa39edb3a5ef3dab0db698a953...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:28.492658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006347/publication.md
observed a45c10faa580975c066e8955c901c1cc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:28.477149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006347/publication.txt
observed 2eac7a839d7e75a5ca917633c353e49b...
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.