OpenTechnical

OT-2026-000020149

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000020149) never changes.

Identity and time

Publication numberOT-2026-000020149 · never reused
Internal UUID01a0ae6f-4379-7129-a930-26178c3363d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020149
StatusPUBLIC

Content hashes

Canonical textce4becb1e608473e53d21f3c790f4c434de1372f1bc75e7c76012289045f6f98
Markdown80f52758395bd2b75931f40857cdf49087475b2aeaf59d9c77882760be3ce7c3
PDF
Publication page9643e281d0ce6c21ce6f6b6fd92aab1eaacdfa8bbb2fb26b17829ae3630041ec
Manifest7b73b4d15b1d6557551f78c1e45eec05b53d94deea45a066b2261c3bd62e6a0c

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
SignatureXSNHqqjO32FxMm6bhD85eDWCLci/LQaqXGHT+c/wbEPUb+Wi0SOGmQ1oWBbo7GguGN+MrwXX8k1zkz6jvLHQCg==
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

2026-09-17T11:56:27.824674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020149
observed 9643e281d0ce6c21ce6f6b6fd92aab1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:27.805593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020149/manifest.json
observed 7b73b4d15b1d6557551f78c1e45eec05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:27.785266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020149/publication.md
observed 80f52758395bd2b75931f40857cdf490...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:27.767321ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020149/publication.txt
observed ce4becb1e608473e53d21f3c790f4c43...
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.