OpenTechnical

OT-2026-000029571

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, 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-2026-000029571) never changes.

Identity and time

Publication numberOT-2026-000029571 · never reused
Internal UUID01a0ae73-5e22-79fe-a7a2-eb5e308ac965 · 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-2026-000029571
StatusPUBLIC

Content hashes

Canonical text5b085c802b05fd117fafed5d98c429bcfdab4c696ee6e91b0aee0337eb10dc46
Markdown439ba73e55a440128a4b228a6d63339222868eea9158bad860f05a3da16821cb
PDF
Publication pagee11150f1c239629e8da2ceb64c5c42fe1103ad6c942ae9722f93765798e0e634
Manifestafabcdb0708e2fc3509704d349df9d138b61b2f9a9a9c37bcd0efe368af1bf34

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
Signature+xwWEgO+2PrFFXgVs1Ozs3p4fPeYnhPa6RF2kg77BV8/gV4xp71eEmhvvt6uflQIWo4gI+DjLWrHUUdjbt54CQ==
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

2026-09-17T11:39:15.946749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029571
observed e11150f1c239629e8da2ceb64c5c42fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:15.928643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029571/manifest.json
observed afabcdb0708e2fc3509704d349df9d13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:15.911076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029571/publication.md
observed 439ba73e55a440128a4b228a6d633392...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:15.892994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029571/publication.txt
observed 5b085c802b05fd117fafed5d98c429bc...
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.