OpenTechnical

OT-2026-000004760

Publication integrity record

Bellows cup vacuum gripper, two outlet manifold, pump fed, contact triggered on the face

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-2026-000004760) never changes.

Identity and time

Publication numberOT-2026-000004760 · never reused
Internal UUID01a0a922-7c29-7b15-8301-123c06570a04 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:33:24.651743Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004760
StatusPUBLIC

Content hashes

Canonical text1716464ed1dac35a9ea0adf79d0c79358e184145010dff8cd2f595402fc515b8
Markdown6905553cee29e2143d65e80e2b0b1a7a10d51c9dd308326231e480245d313b85
PDF
Publication page44202c50076cb380a269e7a42231f2c9724f6eb06ddb313f7919ad3ed41e13cc
Manifest4b591fb4f077b20f8bfcddc2fe3f58f8a84141ec6e44c04be494a83d5b482600

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
SignatureLwPXw0SiTbTp4bkH9hLaSh130/G7lwQC4FhtagHfPmJHmm7j7FAkfRiiDLRVdMx0Hzx7nYBPCI7BNbTLRxFyCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:21.929430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004760
observed 44202c50076cb380a269e7a42231f2c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:21.917695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004760/manifest.json
observed 4b591fb4f077b20f8bfcddc2fe3f58f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:21.906198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004760/publication.md
observed 6905553cee29e2143d65e80e2b0b1a7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:21.894431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004760/publication.txt
observed 1716464ed1dac35a9ea0adf79d0c7935...
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.