OpenTechnical

OT-2026-000031725

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, pulsed 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-2026-000031725) never changes.

Identity and time

Publication numberOT-2026-000031725 · never reused
Internal UUID01a0ae74-bad0-7a58-9903-7a68b97f3138 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031725
StatusPUBLIC

Content hashes

Canonical textf2be076718ed315576b90305143dc629caba1524c71751b458eead105cce3cf9
Markdownf9046fd49dbe424e45f248cab941cd81c13cc09cea56dc370425d22c04022d0a
PDF
Publication page7d7211b5f9259f615fd4b69a7b11a7a3529e2c30e866b74d0688dbad5ada2546
Manifestae40cbe3dd16cc132e617d7984bbc865acada4628f8037957f3215c1aa2238fa

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
SignatureWa3+qZ/bR2rKJ96gsQTr24lJjE0MnaD/PpH3o8igeWLCkmV5ZNq5VsqxPBD9HqS/nVwqeTvONDRSeZrr35JSCA==
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

2026-09-17T11:34:50.314043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031725
observed 7d7211b5f9259f615fd4b69a7b11a7a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:50.298463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031725/manifest.json
observed ae40cbe3dd16cc132e617d7984bbc865...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:50.280943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031725/publication.md
observed f9046fd49dbe424e45f248cab941cd81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:50.263888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031725/publication.txt
observed f2be076718ed315576b90305143dc629...
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.