OpenTechnical

OT-2026-000103940

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, three stage ejector, pulsed blow-off after 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-2026-000103940) never changes.

Identity and time

Publication numberOT-2026-000103940 · never reused
Internal UUID01a0aea5-15e7-73d7-bc60-263df25c545b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103940
StatusPUBLIC

Content hashes

Canonical textcf42ade27c2863d13bcdff252cd0805cef22772d98b6d9b7f2675e4c394ad7d3
Markdown5b85dd8c50bc497454a7dc4e9f3ebc0fe617672d5e1aef5f1dc0cb4479ee9169
PDF
Publication page00bce955b5e3968c2259b84f445e662d39f1444afa8dc7cd20ca14b0020a4951
Manifestb0d9336b506709399f5f5d4bd72e1b5637bb4c51e8d184697830c39f4376387c

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
SignaturecfiSfAShrK6GliA6ox64pCNolH2jM6AvJmbPLifNaQ4XEhwTR9Wh3rqnZ6DoLS3LGE1JM92NC/9bu1lRjL3SCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:56.379683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103940
observed 00bce955b5e3968c2259b84f445e662d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:56.361679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103940/manifest.json
observed b0d9336b506709399f5f5d4bd72e1b56...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:56.344403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103940/publication.md
observed 5b85dd8c50bc497454a7dc4e9f3ebc0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:56.327968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103940/publication.txt
observed cf42ade27c2863d13bcdff252cd0805c...
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.