OpenTechnical

OT-2026-000071493

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000071493) never changes.

Identity and time

Publication numberOT-2026-000071493 · never reused
Internal UUID01a0ae91-e0ee-7dc9-972a-29336b93476b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071493
StatusPUBLIC

Content hashes

Canonical text3f0193133effb6ad78cd017b436bdd6871617b47e4376218ae8b3137ed7ee111
Markdownc7a62c28f8ff93fcbe307398c6f6b36d61e1f2ba0e81312508c01c95ef8fd651
PDF
Publication page3b2f9d1902481be132888bef988bdc68bb8c8cf4e0f3b4da69825edf29f44475
Manifestf61a3b58714e984128107a96db19e21682b0d44264efa0466efecbeb8ec375c7

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
SignatureQufFlEvwu+F6YsiMuBKi8LwCSQjInITI/YCwYqyx+agUaYPe2zGlMQ0BN6lFjJpiT1t2NTyRmvkLIaB5HUyWCA==
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

2026-09-17T10:25:08.219522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071493
observed 3b2f9d1902481be132888bef988bdc68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:08.201299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071493/manifest.json
observed f61a3b58714e984128107a96db19e216...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:08.181230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071493/publication.md
observed c7a62c28f8ff93fcbe307398c6f6b36d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:08.163867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071493/publication.txt
observed 3f0193133effb6ad78cd017b436bdd68...
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.