OpenTechnical

OT-2026-000013138

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, 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-2026-000013138) never changes.

Identity and time

Publication numberOT-2026-000013138 · never reused
Internal UUID01a0ae6d-6fc8-7835-af3c-d6b3503ade0f · 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-2026-000013138
StatusPUBLIC

Content hashes

Canonical texta15e6b143b31d27d348ab6b94822044f0508bc9c509e64fbca90651f498087fc
Markdown808933bce18b61677a329166383e56c444bf382af2773da68a31e1d76763965a
PDF
Publication pagedc4f614aa9afe4d3c9ea19e76cce822d3e806f419810559d6dbd5b8c56d70fe3
Manifest9be22265e3582b619660e342da54a7677409a0f9caae4711d632c81bda801826

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
SignatureO0G9PK6OZDA+xKvbDse5Md+NxlaunRNkoLX3b1rL/dnYGYiX2H3jvQmE6ILjTwvK3Ua9b6cT2eyfaskie1kDCw==
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

2026-09-17T12:09:30.082612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013138
observed dc4f614aa9afe4d3c9ea19e76cce822d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.058505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013138/manifest.json
observed 9be22265e3582b619660e342da54a767...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.037344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013138/publication.md
observed 808933bce18b61677a329166383e56c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.010427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013138/publication.txt
observed a15e6b143b31d27d348ab6b94822044f...
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.