OpenTechnical

OT-2026-000031351

Publication integrity record

Two bellows cup vacuum gripper, two 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-2026-000031351) never changes.

Identity and time

Publication numberOT-2026-000031351 · never reused
Internal UUID01a0ae74-87ac-73fb-8292-15d641c80faa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031351
StatusPUBLIC

Content hashes

Canonical textcf93b81760d7569095412bad72d544d86d396cb08a2013d412fe2bbce6c18fb6
Markdownfc61574d609a85ed8d88d5b9c739d4901b759a296437ff7553d9cc3850b96571
PDF
Publication page1e81de1b93d9ca46240ea7341eda853d2c560f9d498ba860dfc7203ab908a143
Manifest4d1b42d85879503a65f89d16102841243a01af4c0f0a3343ecbfe6ba8ede846b

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
Signature9+Xp6r3OXWNh9MZAhQgAGYD6dbsRMK1XyDrXgZQb4eojUoKoEYc1ZUZq84OwKFNQAtsYReM1K2lCOMXpZdKEDA==
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

2026-09-17T11:36:03.023479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031351
observed 1e81de1b93d9ca46240ea7341eda853d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:03.007729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031351/manifest.json
observed 4d1b42d85879503a65f89d1610284124...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:02.990732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031351/publication.md
observed fc61574d609a85ed8d88d5b9c739d490...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:02.975166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031351/publication.txt
observed cf93b81760d7569095412bad72d544d8...
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.