OpenTechnical

OT-2026-000029415

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum 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-2026-000029415) never changes.

Identity and time

Publication numberOT-2026-000029415 · never reused
Internal UUID01a0ae73-5e20-75ba-848c-efe8988b0172 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029415
StatusPUBLIC

Content hashes

Canonical textbc0230be45989290c4a0c5a1797774d6f1714deebf927183fe1d64a13921db24
Markdown45ec677d4fc6b4510ccbcc5eb8cecfd56ae8864245117af98423be31809f139c
PDF
Publication page4e08c284b45457b655299d0859b432ec9f97118719ffabd7db5d8ddfcc98411a
Manifest80e99b7130323908075182d6fc138800234f4906e8f4c024b127a33706a87d89

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
SignatureUMvlxC/QjGReGCnKJ7RBABLI3oIeIEYJBja6o6hprK4Da9lt71NZcjQ8bTKcFyyzOqjxHoN13NDMDpCoKlS5CA==
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

2026-09-17T11:39:01.202496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029415
observed 4e08c284b45457b655299d0859b432ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:01.185989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029415/manifest.json
observed 80e99b7130323908075182d6fc138800...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:01.168938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029415/publication.md
observed 45ec677d4fc6b4510ccbcc5eb8cecfd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:01.151631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029415/publication.txt
observed bc0230be45989290c4a0c5a1797774d6...
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.