OpenTechnical

OT-2026-000042389

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, sustained blow-off after 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-2026-000042389) never changes.

Identity and time

Publication numberOT-2026-000042389 · never reused
Internal UUID01a0ae7a-5d74-728e-b5f6-c6ae1d251a84 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042389
StatusPUBLIC

Content hashes

Canonical textb95625c020f46ec99b58ad5814f5708da0828c850608f4202fcb8aa8eecd1aef
Markdown6158f2f3d5533f3aae326eaa7a5271e93921144263961761823b704483326ad3
PDF
Publication page36e20ce520f6bb87c103919aed1f985949869576612712de97f0bebd10889b81
Manifest3f0cf1e8e53697e4e2f1640999c169bb841bf446e7b2c03c8457c5b2e61bc5c2

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
SignatureMMWW/hISJybmIfpoUn8fy+RXSzu3wEoQZAIF2ec22a+xNQQGhJUJnAxIoxE9vzkZQB72u//yYQkRdO3jZzokBw==
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

2026-09-17T11:16:10.934193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042389
observed 36e20ce520f6bb87c103919aed1f9859...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:10.915560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042389/manifest.json
observed 3f0cf1e8e53697e4e2f1640999c169bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:10.898031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042389/publication.md
observed 6158f2f3d5533f3aae326eaa7a5271e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:10.880848ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042389/publication.txt
observed b95625c020f46ec99b58ad5814f5708d...
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.