OpenTechnical

OT-2026-000004098

Publication integrity record

Bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed

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-2026-000004098) never changes.

Identity and time

Publication numberOT-2026-000004098 · never reused
Internal UUID01a0a90e-a927-71f2-b187-1ece1724ca8a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:11:45.452491Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004098
StatusPUBLIC

Content hashes

Canonical textba3a394c27682fc4e7fd64fec79ce75270f1fd2e64a68629a578e1c63a2f95af
Markdown9e70c9d9eb73ec15d2fc3f8b8c9acad78f462df7c838a868e830649eff8939b2
PDF
Publication page91fca4e83d92bbc29484292b184902409e63fd89ba2c2053a31f26ec1e31af73
Manifestf99c8ffa535cb692a3766bacad6a1811b71e509e5e2e0053423c80919e926915

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
SignatureqrAFgxCn0yYDcPWXmrA4ekOMLu7jY4+v8g+7RhHcChiaDgh0lqoaCKrHihpmXotgKFHPJ6Nv0FI77o+jDMp9Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:36.707211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004098
observed 91fca4e83d92bbc29484292b18490240...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:36.695234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004098/manifest.json
observed f99c8ffa535cb692a3766bacad6a1811...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:36.682209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004098/publication.md
observed 9e70c9d9eb73ec15d2fc3f8b8c9acad7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:36.669187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004098/publication.txt
observed ba3a394c27682fc4e7fd64fec79ce752...
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.