OpenTechnical

OT-2026-000015303

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, 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-2026-000015303) never changes.

Identity and time

Publication numberOT-2026-000015303 · never reused
Internal UUID01a0ae6d-ef48-705f-a571-c25dd65ff637 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015303
StatusPUBLIC

Content hashes

Canonical text5d0389016230e5b8ffefc6b47c22d3a45b571251d1056cd0d50a78e97de00219
Markdown456c9399f1ce203794ba4abaab77d25a9d41374ed97ac4b75138fdbd513f56aa
PDF
Publication page5880d6a5c877a735fed2be2cbd46435506fdf37703d071f605e00a9103f0e724
Manifesteb11e24a227fbe0236758c47c782b8c15d2e6644717382309b11884d28907a94

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
SignaturewIR9B/rkfDNlDSu5aG3FE9cZ6SbnwvLEGqUiCg/zbFC1pCUZrJqDzH35wiy8Eqv2Ix8Bw752xGVeCQ+JjMKHAw==
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

2026-09-17T12:05:59.604589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015303
observed 5880d6a5c877a735fed2be2cbd464355...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:59.586447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015303/manifest.json
observed eb11e24a227fbe0236758c47c782b8c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:59.567506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015303/publication.md
observed 456c9399f1ce203794ba4abaab77d25a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:59.549716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015303/publication.txt
observed 5d0389016230e5b8ffefc6b47c22d3a4...
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.