OpenTechnical

OT-2026-000004110

Publication integrity record

Bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum 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-2026-000004110) never changes.

Identity and time

Publication numberOT-2026-000004110 · never reused
Internal UUID01a0a90e-da06-7a98-bc7b-58aa77bf2da3 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:11:57.961124Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004110
StatusPUBLIC

Content hashes

Canonical text2ed9d1895c9893387f52c9ed1a0e011ea2235c0915828a20a8b983aebdee0687
Markdownaaee507b277d3a148495e6c378c19235a89c7fed0cf4986ae72ee8f616128d5d
PDF
Publication pageac8553207c0e23ccd8e7c588dbc658792271560692f0b9c21db88fa83302757f
Manifest2933ab55a7a6f28864cad48841dc75cba152b7acd42f3f06932d2b97e65542c2

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
SignatureLsQwMkrITYb0gNlELaquAIRJfTlh/bJzn+p+9U19sHUK+uIW+5qeSYE2txK/3XAGGkop7QyUlVRkP/Dviu6cDw==
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

2026-09-16T07:20:35.422744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004110
observed ac8553207c0e23ccd8e7c588dbc65879...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:35.409768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004110/manifest.json
observed 2933ab55a7a6f28864cad48841dc75cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:35.393221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004110/publication.md
observed aaee507b277d3a148495e6c378c19235...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:35.379880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004110/publication.txt
observed 2ed9d1895c9893387f52c9ed1a0e011e...
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.