OpenTechnical

OT-2026-000032378

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, pulsed blow-off after set-down

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-2026-000032378) never changes.

Identity and time

Publication numberOT-2026-000032378 · never reused
Internal UUID01a0ae75-106e-7367-ae4b-75ef0e306da1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:42.658092Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032378
StatusPUBLIC

Content hashes

Canonical text7f597728a246187c3628e55d16efbe22e906be4ba742e551423cc9d4c93b9a83
Markdown4a850a4b4bad060fe97752e1b37e78e9f93b66f31250c9e60a60385e79528d69
PDF
Publication page43303d94d36cb06f9c4831513c9afba23dde6e33b172a724ed7704834dbd2d17
Manifest3faff9965f43e91310cc067934199220d555cdcb035e7e3c61e3752b01b60164

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
Signaturer/frPZCzfj9nPD9nJp5cSH1Ei1RYcFvjUvBR5Sh3B8GRBR+5kutZrAmVp8K1YFAYYRRT2QJqyG/jV18cl0PBDg==
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

2026-09-17T11:33:47.044625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032378
observed 43303d94d36cb06f9c4831513c9afba2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:47.025501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032378/manifest.json
observed 3faff9965f43e91310cc067934199220...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:47.006945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032378/publication.md
observed 4a850a4b4bad060fe97752e1b37e78e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:46.987377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032378/publication.txt
observed 7f597728a246187c3628e55d16efbe22...
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.