OpenTechnical

OT-2026-000072144

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, vented before set-down

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-2026-000072144) never changes.

Identity and time

Publication numberOT-2026-000072144 · never reused
Internal UUID01a0ae92-47c1-79e4-8b79-7ef1511766a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072144
StatusPUBLIC

Content hashes

Canonical text60a50f184b86428f1c37996dcb8f4ea34fc278092a290352f951bd5b66300a68
Markdownaafe0a59214eb331030da333db832bd7e7aa4f688caeb564d7b8782cdc4f2c41
PDF
Publication pagec8c76891241626252d7e5c40112c47a6fa9765bc631b74bfe5b7e16ec229b567
Manifest4eb3d52f8fea65fa9b23824ddb42b2314305fa2ccd4a4d751b1c92b29b3f369f

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
Signaturea71GCN1ks0WNcGTz4wI1Kjs/VginKKqufELxHbkwo0DiZTQVhVrEt+vMR6t1N96iv9LmVex4TM6dFNF9xvDTAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:23:14.354415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072144
observed c8c76891241626252d7e5c40112c47a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:14.339719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072144/manifest.json
observed 4eb3d52f8fea65fa9b23824ddb42b231...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:14.323263ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072144/publication.md
observed aafe0a59214eb331030da333db832bd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:14.306526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072144/publication.txt
observed 60a50f184b86428f1c37996dcb8f4ea3...
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.