OpenTechnical

OT-2026-000013228

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, 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-2026-000013228) never changes.

Identity and time

Publication numberOT-2026-000013228 · never reused
Internal UUID01a0ae6d-6fc9-7228-a1a0-737429a38beb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013228
StatusPUBLIC

Content hashes

Canonical textd9ba15ca900d6981b324af4ea0e510e17b7fe131c6055066a400cdc28d6ff7c5
Markdown95c349da8202ab125914d67937d08c7f9e8bc8a5b63ff90319fb7d9a0bc41c9f
PDF
Publication pagef9e2d2efffd62845694a72362ccd214c73d0aef40919ac2e1c8f778849cea655
Manifest9a2fd126b0b63aa9014e9f1c303089362378365f59ea816606e3fdd9f6fded83

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
Signature2YKJHRlEm0K/nEwoA8MZX5tZN3RhFd6M2Qx2kCbxisKzvGSAzRY+A2xGvA/iADcz5JmgxwlJ6kaOPD9YRFICAw==
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

2026-09-17T12:09:37.455662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013228
observed f9e2d2efffd62845694a72362ccd214c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:37.436594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013228/manifest.json
observed 9a2fd126b0b63aa9014e9f1c30308936...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:37.416954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013228/publication.md
observed 95c349da8202ab125914d67937d08c7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:37.396415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013228/publication.txt
observed d9ba15ca900d6981b324af4ea0e510e1...
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.