OpenTechnical

OT-2026-000025987

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, two stage ejector, pulsed blow-off before set-down, on a tool changer

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-2026-000025987) never changes.

Identity and time

Publication numberOT-2026-000025987 · never reused
Internal UUID01a0ae71-a83f-7732-91b6-f7aa8df62339 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:59.376802Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025987
StatusPUBLIC

Content hashes

Canonical text380847b7af542265ab9de94094edd9bc409af5bc9962e2afcb8af3db67a4a1fe
Markdown90905203865151f6a6f6c45b5db54331af967312cf948b979a6b54c6c53cd4ba
PDF
Publication page6b4450c0c46254257e916175084ddfff107543968e6c766da1b84f2a207008fe
Manifestd121a93afe2940d4313420774523b79c3e95a3c3750199be2481afeaad47feaa

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
SignatureFo7TxKU/qicHEnlUPfvh15Owkwv6or4wMPTvEPdEOruWd4sHUY5P/enjy8KbwnGPXt0EwhDANwTMhVz0kpsCCA==
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

2026-09-17T11:46:21.512322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025987
observed 6b4450c0c46254257e916175084ddfff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:21.494887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025987/manifest.json
observed d121a93afe2940d4313420774523b79c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:21.477086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025987/publication.md
observed 90905203865151f6a6f6c45b5db54331...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:21.458839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025987/publication.txt
observed 380847b7af542265ab9de94094edd9bc...
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.