OpenTechnical

OT-2026-000087405

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, pump fed, sustained 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-2026-000087405) never changes.

Identity and time

Publication numberOT-2026-000087405 · never reused
Internal UUID01a0ae9a-cd50-7631-944a-26f5827ed50b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087405
StatusPUBLIC

Content hashes

Canonical textcba61721f0c8d43c578f2b2d2d7ccc998fca54a81e8a41fd3cc35f78a28919ad
Markdown07d44cfcb3df34a7784035764273766a8fa2750f4167b744edf05fafb34f73a4
PDF
Publication pagedb78402be5473608923561048ac1f43d295b9bc4f583260001b4a5a6a358a6f1
Manifest4c32eefe4553fad087d081d62991b5a894b94288174c441f3673aeec0c7128c7

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
SignatureW8SFiiPKEUuAwG7pcK+FZAjdgRzOZ4NCsDJT2L5rHv21ZbYO3bR3dDUWZQWl/1/myAii9RHCn4fYFX6GDGTaCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:50:43.193727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087405
observed db78402be5473608923561048ac1f43d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:43.174020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087405/manifest.json
observed 4c32eefe4553fad087d081d62991b5a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:43.156986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087405/publication.md
observed 07d44cfcb3df34a7784035764273766a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:43.136153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087405/publication.txt
observed cba61721f0c8d43c578f2b2d2d7ccc99...
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.