OpenTechnical

OT-2026-000012775

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump fed, pulsed blow-off before set-down, on a tool changer

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-2026-000012775) never changes.

Identity and time

Publication numberOT-2026-000012775 · never reused
Internal UUID01a0ae6d-5563-7f62-ac8e-d936582010ff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012775
StatusPUBLIC

Content hashes

Canonical textd49874470470b8acd516005b0805bdb10496eacaece464227bc77fc77b1b5ba6
Markdownca0da3013ead9be10c2ed2bafd4f0ee9cd4e96ca6337c6db042ada37afedcb34
PDF
Publication page79fa69c22e2a43e86b75f7944b95f29142c7c40c9111300a1bf6dabeddf5f9ae
Manifest6b1b0606f2eb111c75cfbbb863370721023dbc493c933b2286d9f365c139ca96

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
SignaturejiZgRcCNgbAIITLtNHzM22xToel8Q3FfZ7fjjWWGMOBBNWxYVSq2IJ6bstWccEhqxUab+4o/gb+GZJIhVn19BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:10:29.498260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012775
observed 79fa69c22e2a43e86b75f7944b95f291...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:29.477117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012775/manifest.json
observed 6b1b0606f2eb111c75cfbbb863370721...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:29.456322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012775/publication.md
observed ca0da3013ead9be10c2ed2bafd4f0ee9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:29.437342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012775/publication.txt
observed d49874470470b8acd516005b0805bdb1...
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.