OpenTechnical

OT-2026-000004830

Publication integrity record

Vacuum cup gripper, two zone face, three outlet manifold, plant vacuum fed, pressure verified

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-2026-000004830) never changes.

Identity and time

Publication numberOT-2026-000004830 · never reused
Internal UUID01a0a924-adcf-7908-ab67-75e079288fa2 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:35:48.434238Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004830
StatusPUBLIC

Content hashes

Canonical text8bcd6d3badbfafb505271df14e9a82bead54aed2cc9ef95bf0fc9a6e1a52967e
Markdownea30e102bb96875f65cab9405bc7345e76fe6d1e4ede09415ca244c3e9f70892
PDF
Publication page94559ddc3a555d61b20f5a9344437fe246db67102fc24179a2771ac8297ae856
Manifest596131df85b28d73c9bf3c604c5d474f8a8e1d90dc20edf34d9216682beffc99

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
SignatureFsdknRejpjm9cga1a1IfnZVnGI4GSLf/nOhwZJWuQnnPPOBuGO6rfkH0+vGPpheI6W84KZZS7oKqNYkd3ErqDg==
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

2026-09-16T07:40:14.422702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004830
observed 94559ddc3a555d61b20f5a9344437fe2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:14.409359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004830/manifest.json
observed 596131df85b28d73c9bf3c604c5d474f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:14.397142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004830/publication.md
observed ea30e102bb96875f65cab9405bc7345e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:14.384651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004830/publication.txt
observed 8bcd6d3badbfafb505271df14e9a82be...
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.