OpenTechnical

OT-2026-000012387

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, 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-2026-000012387) never changes.

Identity and time

Publication numberOT-2026-000012387 · never reused
Internal UUID01a0ae6d-39f6-7b6b-b6ef-fb63c7818f81 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012387
StatusPUBLIC

Content hashes

Canonical textb8761e87ab5d11bfb6bf95a712fdcf2bd18c4d0ec318f6bdb0ca56002147582d
Markdown7030f75906571b2a213ec160791c7ac8eb3b0314b92148d4dea3c0d4a532e028
PDF
Publication pagee7683e55452ba5eac52f1ea370751fea0d7b387ea370df9445075ceeb4df2e26
Manifestd56e741389a0528314e8c5a778c54c815a9f0bbee7428766ff9663637dc9678a

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
SignaturejYrCNe7ZeOzVlzVhd85A8QjEWlaKP6lGuU28XhwOOWa2O/OGFz38f4A1fB84PM/gLXU7DhrJoH+Ev//pEctbDQ==
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

2026-09-17T12:11:52.601432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012387
observed e7683e55452ba5eac52f1ea370751fea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:52.582162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012387/manifest.json
observed d56e741389a0528314e8c5a778c54c81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:52.559828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012387/publication.md
observed 7030f75906571b2a213ec160791c7ac8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:11:52.521978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012387/publication.txt
observed b8761e87ab5d11bfb6bf95a712fdcf2b...
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.