OpenTechnical

OT-2026-000027699

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum 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-2026-000027699) never changes.

Identity and time

Publication numberOT-2026-000027699 · never reused
Internal UUID01a0ae72-699a-7635-a2d6-cfb933e1ee52 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027699
StatusPUBLIC

Content hashes

Canonical text9a79771904d3768d1f6f08609d71c23490e5d603d563f6c97bc842be77174f4a
Markdown59c7d7319b94636cd684d47f2cf2e35eef4e0c7e1be4f8e05f3c71eb15b8fb32
PDF
Publication page9a635311bf5c6a203283d2a54b6ea90a43ddd890682e860e979e86eeed0094e8
Manifest31fa52a252a7aca8b2381062cf8b0505e48fef48e4682781309f78b0aa437f21

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
SignatureAWEd0UQ3gL3tJeyccHu6x4iKkdgdKrctDb8dX4v0y0Dlem4p9Af6BKRvGU7MXf4mS69yeMtI+D3OgHFUdwXWCw==
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

2026-09-17T11:43:14.880899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027699
observed 9a635311bf5c6a203283d2a54b6ea90a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:14.861723ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027699/manifest.json
observed 31fa52a252a7aca8b2381062cf8b0505...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:14.834755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027699/publication.md
observed 59c7d7319b94636cd684d47f2cf2e35e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:14.816662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027699/publication.txt
observed 9a79771904d3768d1f6f08609d71c234...
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.