OpenTechnical

OT-2026-000019023

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, 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-2026-000019023) never changes.

Identity and time

Publication numberOT-2026-000019023 · never reused
Internal UUID01a0ae6e-d523-7b71-80de-99449c75d739 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019023
StatusPUBLIC

Content hashes

Canonical text34bc9426fba2bf0cbf2bff8bab185c3b19c06948c18ee656791e4617293116bb
Markdownb28f5e70962b2d128c67f3b7ba0195b622c9fc869401dfe22832afcc7dcc4c35
PDF
Publication page942adeb25758247759750dfba9c9c4f8081ff372d7b25586e16a607b97f6f133
Manifeste23308ac3164885c7f9dd3d0a5791fd93b7ee802015b6ecf6f1c6e9da2cb63d6

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
Signature1BSmOlX+oLJRS171LBxYIYLTQo7cKQVhjU7TKnxZJ7ha6lOwGe0PoyLFiq/H7YeSQf8afcAVJ3JtkNXyzDQdBw==
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

2026-09-17T11:59:41.654803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019023
observed 942adeb25758247759750dfba9c9c4f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:41.635977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019023/manifest.json
observed e23308ac3164885c7f9dd3d0a5791fd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:41.612352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019023/publication.md
observed b28f5e70962b2d128c67f3b7ba0195b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:41.579740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019023/publication.txt
observed 34bc9426fba2bf0cbf2bff8bab185c3b...
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.