OpenTechnical

OT-2026-000005300

Publication integrity record

Porous face vacuum gripper, two outlet manifold, plant vacuum fed, contact triggered

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-2026-000005300) never changes.

Identity and time

Publication numberOT-2026-000005300 · never reused
Internal UUID01a0a934-b475-782d-8190-385374faddc0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:53:18.712076Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005300
StatusPUBLIC

Content hashes

Canonical text922714bade803c8251a3253ea17d17e5efabc10593234e1205766b6796998d0c
Markdownf9af42f475ee53af5f6caddc66566990a573117f79ad2911b6c1f7fab7e49062
PDF
Publication pagea4b28e1d2cf0c158d11137d28ad2fdd2fe24e786678f4ba25615f6d92456f178
Manifestcbf082179491c5e3c66eaf91241bdbbf9755552f7784f155accc7ac511e5ba8c

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
Signatureub1Rkb9fb1IyCJpQz/7HB+wyRWoU6QduVJG8lOfPkQ/5U5VY/Wt5vGf/tT8lJNzYtkGQ89wgkQ6+V3465sYoDw==
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

2026-09-16T08:00:25.190580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005300
observed a4b28e1d2cf0c158d11137d28ad2fdd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:25.178694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005300/manifest.json
observed cbf082179491c5e3c66eaf91241bdbbf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:25.165649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005300/publication.md
observed f9af42f475ee53af5f6caddc66566990...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:25.151624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005300/publication.txt
observed 922714bade803c8251a3253ea17d17e5...
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.