OpenTechnical

OT-2026-000029932

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, sustained 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-2026-000029932) never changes.

Identity and time

Publication numberOT-2026-000029932 · never reused
Internal UUID01a0ae73-ac48-72a2-af64-8d1749a780e0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029932
StatusPUBLIC

Content hashes

Canonical text236be0ee436583cd8ea46ab0130fdd71a67438c3fdc7d5363fb59c1ec801e5a4
Markdown05a250d418eed2d37deb2038c3cf68759612e1aea499d551649a975d36d63693
PDF
Publication pagee80a134a07e49e18ae71c286e13c3b73e2d000cbf5dcd021e41ad204538b5359
Manifestb54309980892ad5c1f06556528522a5f1f5365bcd0c0e14ae4e54fbe5a911049

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
SignatureC0SyE2GDjztQzAxCnM9/fpiz0ZcedFqwpawyVWdutOpvyvc1kI/vBYT+4icM75QPEUGnkYIcNABYUHWAcWSGCg==
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

2026-09-17T11:38:38.544287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029932
observed e80a134a07e49e18ae71c286e13c3b73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:38.527266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029932/manifest.json
observed b54309980892ad5c1f06556528522a5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:38.508088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029932/publication.md
observed 05a250d418eed2d37deb2038c3cf6875...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:38.491638ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029932/publication.txt
observed 236be0ee436583cd8ea46ab0130fdd71...
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.