OpenTechnical

OT-2026-000031646

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, pump 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-2026-000031646) never changes.

Identity and time

Publication numberOT-2026-000031646 · never reused
Internal UUID01a0ae74-bad0-7bab-bc5e-ac306decab4a · 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-2026-000031646
StatusPUBLIC

Content hashes

Canonical text43ab6705d4370d2bd24824c9089104da8abfa04bb46cbedc082c189e3d46041d
Markdown1635f87135abb471d0fdac3cc93eae3c1ae3e2f660b530a156f241c9ac055650
PDF
Publication page21704fabc154b0da78a00f65d78f1e603a58e9f3e87831e35edb2bf6b940c629
Manifest2635eb5062c29b1733f6e6cb1c0944a52a315e2b0873bd10f51e466472e78bf6

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
Signature7YjSrq8X/FntlTxRrvxRbVQouTpgvL78beat+o7ttTPnTWNwW+BiGtvGbVOu3cYiVqR/H3nhfIDHf61kTDDKDA==
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

2026-09-17T11:34:42.102808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031646
observed 21704fabc154b0da78a00f65d78f1e60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.086433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031646/manifest.json
observed 2635eb5062c29b1733f6e6cb1c0944a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.069052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031646/publication.md
observed 1635f87135abb471d0fdac3cc93eae3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.051470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031646/publication.txt
observed 43ab6705d4370d2bd24824c9089104da...
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.