OpenTechnical

OT-2026-000042016

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum fed, pulsed blow-off after 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-2026-000042016) never changes.

Identity and time

Publication numberOT-2026-000042016 · never reused
Internal UUID01a0ae7a-5d70-7171-8330-647815ba1283 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042016
StatusPUBLIC

Content hashes

Canonical text39eac915a309bd0f3d18ab29d6e1f495992abbbac9c5b452b18c78f79e2e9727
Markdown444a8da5b5232462fefcc578214fa19fea0ca42a390d147f8ab5fb7ba1f61f2a
PDF
Publication page1c29749893af307dac2dacc399210b50e9337b586be2e4133dc8c57cb13cb914
Manifestef92048ec8b0d3b68bdfa77d8927692e73a85787700c5d232d77b57c657e0064

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
SignatureTjA2VvygUvdAowfMq1Mn9MaDV/vA95rwX5hMo/oEwrAiBQXkxRLwm1Jjo9HvKaTn7HFEmLimk8AVETH0xRSUDg==
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

2026-09-17T11:15:31.126133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042016
observed 1c29749893af307dac2dacc399210b50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:31.108450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042016/manifest.json
observed ef92048ec8b0d3b68bdfa77d8927692e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:31.088906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042016/publication.md
observed 444a8da5b5232462fefcc578214fa19f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:31.070262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042016/publication.txt
observed 39eac915a309bd0f3d18ab29d6e1f495...
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.