OpenTechnical

OT-2026-000031863

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, single 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-2026-000031863) never changes.

Identity and time

Publication numberOT-2026-000031863 · never reused
Internal UUID01a0ae74-bad1-72e0-b3f2-0d7610347968 · 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-2026-000031863
StatusPUBLIC

Content hashes

Canonical texta9bbda448873c88ef4e74bf78e1d6e2256709ab5dd651c034f7f59bc5c176c8c
Markdownb59774e7b0d6fe0f051ee013e814c78e8940461f89f19baf4d5e8b763f0ee307
PDF
Publication pageb9212f62e0d49510fea9184e62d676eb3f4cd6032f1ba69f7ba149985c23c870
Manifest5c98de2ae5dd5d4b89d057512bffda7fd5d29f813ab42da352608972bac3e3dc

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
Signature9hZre6mihTupE1e6a1PwAd2aIIIatNkFD5b5lY271nqrvfZDlwr6TAeBAWQ0O8ev9DMjhQRfTT4romRpxPVpBw==
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

2026-09-17T11:35:07.224727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031863
observed b9212f62e0d49510fea9184e62d676eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:07.206705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031863/manifest.json
observed 5c98de2ae5dd5d4b89d057512bffda7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:07.189460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031863/publication.md
observed b59774e7b0d6fe0f051ee013e814c78e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:07.172193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031863/publication.txt
observed a9bbda448873c88ef4e74bf78e1d6e22...
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.