OpenTechnical

OT-2026-000041685

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, sustained 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-2026-000041685) never changes.

Identity and time

Publication numberOT-2026-000041685 · never reused
Internal UUID01a0ae79-e8a1-763d-9dfa-44e084feecff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041685
StatusPUBLIC

Content hashes

Canonical text9ba967d88d8ff8de49edf89d814acb921bf4724bfa35c64c944d0894774f1b83
Markdownd3bc42567a84207263451f5340c9e3cfe181901ad463f01b640d69853480bfcd
PDF
Publication pagea98d7451d2d1eca3e39b7ee19e9fd9281dfbac5f43a92a3bd6f10b9c2726c9cf
Manifest5362e58aef3f97384ad2e91eb08b776831a27d27c14435a7a661bfcb39341461

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
SignaturevyQjNf4ksgRxamMyz5wmWOCWg//3tKodPtI1lJJN63bAnuTl4GMe+g2scIXyz/W1JAuVFqgW1W6eNL6Lq9JdCw==
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

2026-09-17T11:16:29.699478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041685
observed a98d7451d2d1eca3e39b7ee19e9fd928...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:29.682992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041685/manifest.json
observed 5362e58aef3f97384ad2e91eb08b7768...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:29.666014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041685/publication.md
observed d3bc42567a84207263451f5340c9e3cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:29.646479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041685/publication.txt
observed 9ba967d88d8ff8de49edf89d814acb92...
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.