OpenTechnical

OT-2026-000021013

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, pulsed blow-off 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-2026-000021013) never changes.

Identity and time

Publication numberOT-2026-000021013 · never reused
Internal UUID01a0ae6f-65e4-75c4-b3bc-608b7dc4ca6c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021013
StatusPUBLIC

Content hashes

Canonical textd3838c1aa88be530c22f2bb22be7d940a679fe409324e9bd7bf650999ed1be33
Markdownaa9dff8b66e9d9e7bb837b873a85c43c7d9e360a5fe289893d75946c81b9b49d
PDF
Publication page7b2bd947b3626c675c585ad52293b45314c04aee3902caea699ce4095cfd6a24
Manifest8980c0f2ba5fb44a28d411755c90dad777f5c605aa9c883484230fd3a3658561

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
SignatureDh7KhvIRPd4iVq11zrcODhqoqk4gHOV5Fz21i/Nq3MZij0rLFPbfY6WRan5KvH/RPK2qYwZB/U2QChSM4XUvBw==
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

2026-09-17T11:56:10.322210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021013
observed 7b2bd947b3626c675c585ad52293b453...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:10.304488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021013/manifest.json
observed 8980c0f2ba5fb44a28d411755c90dad7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:10.286565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021013/publication.md
observed aa9dff8b66e9d9e7bb837b873a85c43c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:10.268306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021013/publication.txt
observed d3838c1aa88be530c22f2bb22be7d940...
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.