OpenTechnical

OT-2026-000019142

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold 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-2026-000019142) never changes.

Identity and time

Publication numberOT-2026-000019142 · never reused
Internal UUID01a0ae6e-f391-7bd8-855e-41d5e3046afe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019142
StatusPUBLIC

Content hashes

Canonical textb63c53a205a8855177d1c9dbc958dab42fcb2866f65e0116b9723e2f1f218005
Markdownd17f7badb56f21a1b1e8085a293525e67bc7cce125f6ce18ccba76f34f1a2062
PDF
Publication page91f4da268ed37ac9c360cc6772542e17b7b8941938afb10d1daa0c7e085d7f4e
Manifest500c014ffc9ad9139c64e23a3072ed1bae102687dd986c1649958430c3186c08

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
Signaturejb1VeXeARXJ9Dwj4n4nmhjqirzrPJGQWsgGZgIZKedEl0rvBXfclOGRUAE6H3UniDIQ73CwFkuWPnho8zG8rBQ==
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

2026-09-17T11:58:27.073135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019142
observed 91f4da268ed37ac9c360cc6772542e17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:27.057243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019142/manifest.json
observed 500c014ffc9ad9139c64e23a3072ed1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:27.037129ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019142/publication.md
observed d17f7badb56f21a1b1e8085a293525e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:27.017352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019142/publication.txt
observed b63c53a205a8855177d1c9dbc958dab4...
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.