OpenTechnical

OT-2026-000004694

Publication integrity record

Bellows cup vacuum gripper, per zone isolation, three outlet manifold, ejector fed, contact triggered

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-2026-000004694) never changes.

Identity and time

Publication numberOT-2026-000004694 · never reused
Internal UUID01a0a920-6278-77f9-932f-273208db2847 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:31:07.121288Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004694
StatusPUBLIC

Content hashes

Canonical textb8cefe9e0076c7b0c446b378a693bf1ea8c72850e3305f7a5baff65950de6810
Markdown64075b9ddf9cb188a62f98c82ffa9e35c78c7e7b3ff7693605c18a768733a0d9
PDF
Publication page765a88decb4e8dfdf134e9fe9f29609d6c68080064b23fee568aec6fba690a4a
Manifestbf93f0c2043bbba7d74665d3d7af4f98e3ac66e2c8ad8acf0e2e4f2c7153275f

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
SignaturecZX9aGAZWoKaWJm1Frt5OZBE6Qm4QoU9D5AdMlWJPfhAL4LUnk7PiAer/eYiHNcBgyxCMQACUd9cgCQkoJBnDg==
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

2026-09-16T07:40:28.741908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004694
observed 765a88decb4e8dfdf134e9fe9f29609d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:28.729967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004694/manifest.json
observed bf93f0c2043bbba7d74665d3d7af4f98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:28.715590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004694/publication.md
observed 64075b9ddf9cb188a62f98c82ffa9e35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:28.701212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004694/publication.txt
observed b8cefe9e0076c7b0c446b378a693bf1e...
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.