OpenTechnical

OT-2026-000005672

Publication integrity record

Bellows cup vacuum gripper, three outlet manifold, pump fed, pressure verified at each zone

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-2026-000005672) never changes.

Identity and time

Publication numberOT-2026-000005672 · never reused
Internal UUID01a0a940-ef31-7904-994d-42928d6710a3 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:06:40.180687Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005672
StatusPUBLIC

Content hashes

Canonical textae106f16abe9c4b077bb6811ee892e3223cfedc8f752702d8e2734d2b9011d17
Markdown7fc86c335c6afb2210d6a4868a99db195df4f1ee2411184e0d7ab6718b9b5998
PDF
Publication page9fc13e22ccf78eb1366df9ffab19d0ed9b7008b2b97b003d840a07a1367c347f
Manifest5c437e9860addb90e3a0e75fd029705681becb601fa6659e24440c72f9244ab8

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
Signaturey38HPPZjE9cMeFyo7Xw678VQoiqMB+lUTmURgCKCWCFPL74/PUO0d7DoUOKLrUSWbicOIuZH1rY98f1ckSQ7BQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:13.633594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005672
observed 9fc13e22ccf78eb1366df9ffab19d0ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:13.498635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005672/manifest.json
observed 5c437e9860addb90e3a0e75fd0297056...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:13.483534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005672/publication.md
observed 7fc86c335c6afb2210d6a4868a99db19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:13.468873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005672/publication.txt
observed ae106f16abe9c4b077bb6811ee892e32...
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.