OpenTechnical

OT-2026-000041336

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, pulsed blow-off after 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-2026-000041336) never changes.

Identity and time

Publication numberOT-2026-000041336 · never reused
Internal UUID01a0ae79-b144-7997-8082-55531a63fa03 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041336
StatusPUBLIC

Content hashes

Canonical textcba9a1824131b697321196f5c1ab73949f6db930b10e09a11dba7bb8e8abb111
Markdowna6256422becde25c56038bef82eeaa0c463f0368d205d5e481f7b30049d81b8d
PDF
Publication pageb4a9feeb93f7fb33aaa0c4958c340a90050f2248a74b4c25f01e9fbb070eca43
Manifeste83d4546ded8994b7c3b7d893c3cfd0d1421c0a7658874f2c5c7b4b35cc0a333

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
SignatureVK8m4Gm4GqXuyH+uY22TI1EUgi5Ir4AjVTaSsOxhdyGUTTGEBR6y9FnSzhN96ZH79+tXqc7I4x/rkVpEvup7Ag==
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

2026-09-17T11:17:19.972886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041336
observed b4a9feeb93f7fb33aaa0c4958c340a90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:19.952616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041336/manifest.json
observed e83d4546ded8994b7c3b7d893c3cfd0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:19.922860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041336/publication.md
observed a6256422becde25c56038bef82eeaa0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:19.884351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041336/publication.txt
observed cba9a1824131b697321196f5c1ab7394...
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.