OpenTechnical

OT-2026-000031887

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, two stage ejector, 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-2026-000031887) never changes.

Identity and time

Publication numberOT-2026-000031887 · never reused
Internal UUID01a0ae74-bad2-7b4f-92a2-e5c27c3bf42e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031887
StatusPUBLIC

Content hashes

Canonical text0cc3e11e0d46d4ad22c72d579d3e6c82faed8551ccda4fe88f61d47fc168d681
Markdownef37780f4763b0594ec43ac71b896cdf9262289ce82514bff995e4de33d559ca
PDF
Publication pagee8902f7263322abdeb5d8106180883db5268b0425051869e19d3166293c896b9
Manifestff9125240e418b0bde2efb9cca92ff0a4b35d1f80d7732dd045fe489f240d102

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
SignaturetRA6pH3xQEx5LNP7+4+hGJo1VAtrt7bVckGDMta7nnvortw+YwJmJSXiyoprGF09jCdwPu50NJ36qpZD1jSgBw==
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

2026-09-17T11:35:09.167763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031887
observed e8902f7263322abdeb5d8106180883db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:09.151261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031887/manifest.json
observed ff9125240e418b0bde2efb9cca92ff0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:09.131444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031887/publication.md
observed ef37780f4763b0594ec43ac71b896cdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:09.112063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031887/publication.txt
observed 0cc3e11e0d46d4ad22c72d579d3e6c82...
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.