OpenTechnical

OT-2026-000031983

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, pulsed blow-off before set-down

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-2026-000031983) never changes.

Identity and time

Publication numberOT-2026-000031983 · never reused
Internal UUID01a0ae74-bad2-7200-9b49-a8ae76c1cc81 · 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-2026-000031983
StatusPUBLIC

Content hashes

Canonical text127c0d17d1cdd3af1a0fb13d16fc975c3941bba4a3596f14ef79d18b434760d1
Markdown80adf24b6a28efd934dca48db75bcae87f154fdf2dbf491ef7349da8e9bc4e84
PDF
Publication page5499ef5867bc5f7115f2f4ac8d4c0332f70b3436cf232207ed9b1799d916b306
Manifestc087fc482af98708ad270beb5071f2b93ee57ca6de2965e1808276bf8c64e65e

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
SignaturepPcqDpRqrp5m9ZipVSXxhISJOJZeR/E4lx69Hn42Wrwt23TmWk+c5Fy3J4DMa5+YqB5VshZ/OfLbBTPxfc5gDg==
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

2026-09-17T11:35:16.846842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031983
observed 5499ef5867bc5f7115f2f4ac8d4c0332...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:16.830404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031983/manifest.json
observed c087fc482af98708ad270beb5071f2b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:16.813835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031983/publication.md
observed 80adf24b6a28efd934dca48db75bcae8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:16.797210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031983/publication.txt
observed 127c0d17d1cdd3af1a0fb13d16fc975c...
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.