OpenTechnical

OT-2026-000022020

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, plant vacuum fed, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer

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-2026-000022020) never changes.

Identity and time

Publication numberOT-2026-000022020 · never reused
Internal UUID01a0ae6f-bb5c-7722-a5c1-44644ff0363a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022020
StatusPUBLIC

Content hashes

Canonical texta313a2cc7f4fcceef033ccfe67bdc3caaf7494d6e8f6297bec2ccb2b7a84b513
Markdown500032460382e3525c9f90bb0e68dd18a5dcfbd59e076feddc6bcef466316619
PDF
Publication page09ba635a8bd2302cb19a983efa3b05232034ee148afd4d6454f6f8a539749de6
Manifest3fd64d95e5d527103e2f0528844e90c0b1facb03ec2470ed68de9c18b4d419e4

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
SignatureGPhHEAfxeiJJaKlBbqREdkdgD5tMcjEDhDq6B3DBvR6wqqHqyEUNC0AAc8+Us6QqTW86nH0o7TxvfdCbV1sVCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:54:42.281847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022020
observed 09ba635a8bd2302cb19a983efa3b0523...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:42.264111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022020/manifest.json
observed 3fd64d95e5d527103e2f0528844e90c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:42.247435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022020/publication.md
observed 500032460382e3525c9f90bb0e68dd18...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:42.228835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022020/publication.txt
observed a313a2cc7f4fcceef033ccfe67bdc3ca...
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.