OpenTechnical

OT-2026-000089602

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000089602) never changes.

Identity and time

Publication numberOT-2026-000089602 · never reused
Internal UUID01a0ae9c-1a21-7818-a96b-9f038f5a8920 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089602
StatusPUBLIC

Content hashes

Canonical text0afcf06bffb521c2a6161f880ce428ecc5ee71b4c3b5456a1714900f70882bb6
Markdown750439cb0bd53a311091045c7cb761414b82ee3fff91798798151ebfd04fe534
PDF
Publication page879c47b7a2a6d43c9d45b858f5d9148bceb133413c256d6c2816e3239cd616aa
Manifest6f9dfbc35472314d702d9c34eec13b05d32fc26c9b85d89d70bd4e7425c0894c

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
Signature/INgW3qZAE9nKUawIzjTi56NqWbQDnJqcFqt9TrWqCajJZZxhdh3Z/L4cypBFvFCwa7QY7uXu9tauXC+rAkgAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:46:34.875688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089602
observed 879c47b7a2a6d43c9d45b858f5d9148b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.856156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089602/manifest.json
observed 6f9dfbc35472314d702d9c34eec13b05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.839111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089602/publication.md
observed 750439cb0bd53a311091045c7cb76141...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.822098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089602/publication.txt
observed 0afcf06bffb521c2a6161f880ce428ec...
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.