OpenTechnical

OT-2026-000022331

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, 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-2026-000022331) never changes.

Identity and time

Publication numberOT-2026-000022331 · never reused
Internal UUID01a0ae6f-f4fd-7d48-b0db-bcfe0558742c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022331
StatusPUBLIC

Content hashes

Canonical text13aaca1e2b25c2da2013df354dd7c1f9b3de527878c970eac6667ff4ed80cfce
Markdown838901732554acec5d582d5152d3cabca8f648ab6909e468e74ea4dba6eba6b7
PDF
Publication page4f1fcde274a7c8476a598c64bd633b547a406a833bc384092f023fa63610a327
Manifestb99ae1d2a9134f98480aa80b19cc9f460e3cb515aed49cdae8659b640629b341

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
SignaturelwKKAVVSLwAriYDBoT2aW+ChsHerYYDi5sM/iBlxQ0BpwZxVBBqC2liQSaaC1zFJq5PY486+EdfPkAsCPOpYDg==
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

2026-09-17T11:53:41.551696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022331
observed 4f1fcde274a7c8476a598c64bd633b54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:41.534398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022331/manifest.json
observed b99ae1d2a9134f98480aa80b19cc9f46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:41.518878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022331/publication.md
observed 838901732554acec5d582d5152d3cabc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:41.500857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022331/publication.txt
observed 13aaca1e2b25c2da2013df354dd7c1f9...
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.