OpenTechnical

OT-2026-000021220

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000021220) never changes.

Identity and time

Publication numberOT-2026-000021220 · never reused
Internal UUID01a0ae6f-865c-7d5c-9ff4-146313784f3f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021220
StatusPUBLIC

Content hashes

Canonical textececdcd3303fe45e81daa6f5d23dd647b2c528cfc22f72947d957dc4372cde32
Markdowncda0bf1c8bb43e4109639982101549f8a24ef3cff74e15e1438e3c196b92425f
PDF
Publication page419f9610cb64ed94dff3cfb429f44b191c29fa45f5051e605442695c08d1fedb
Manifest4c53d6899c2ec306aa3c06fbedaad3e574d0be4abd4a3b9f48489dff7a1431c6

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
Signatureyaimc4trdzRfxDY7DHnbmi9uIaKJd4Ui0Po+6hLQdJGMlAPdmdv5kEIBHOPdvvJdRlwGRmF0/1h9q1MRtL+sAw==
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

2026-09-17T11:55:01.524611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021220
observed 419f9610cb64ed94dff3cfb429f44b19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:01.504352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021220/manifest.json
observed 4c53d6899c2ec306aa3c06fbedaad3e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:01.485524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021220/publication.md
observed cda0bf1c8bb43e4109639982101549f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:01.462962ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021220/publication.txt
observed ececdcd3303fe45e81daa6f5d23dd647...
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.