OpenTechnical

OT-2026-000033109

Publication integrity record

Four cup vacuum gripper, four outlet manifold, 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-2026-000033109) never changes.

Identity and time

Publication numberOT-2026-000033109 · never reused
Internal UUID01a0ae75-4844-7df4-b1ce-5b4803af2d61 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033109
StatusPUBLIC

Content hashes

Canonical textae4a7adb4633bd9fbb1a3c21120ea30508ea15b0c9a8e044f21e1aa80c0737db
Markdowna91685970efd441766adf72cf2438864e8013ab41e8fc13ba1a0d0bee8b40dff
PDF
Publication page38bfa7b58db09e9a77ec93fd60a1d737d73673f53d90384d2b9e8d5cce6d1434
Manifest51042230454fe57bb4e447dc7abb3d81b3a239b1766689cd0bd69718938cdfc1

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
SignaturedVbsI2jwsrgiQdtc3Yz+RRfqns+qDjWF7uPOm1lckss0QGGBuCI2/l+hFbOq61r1gdRBOsJxpvvPN2+pRnlVDQ==
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

2026-09-17T11:32:45.797756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033109
observed 38bfa7b58db09e9a77ec93fd60a1d737...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:45.776402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033109/manifest.json
observed 51042230454fe57bb4e447dc7abb3d81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:45.749239ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033109/publication.md
observed a91685970efd441766adf72cf2438864...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:45.731249ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033109/publication.txt
observed ae4a7adb4633bd9fbb1a3c21120ea305...
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.