OpenTechnical

OT-2026-000087893

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, two stage ejector, supply line pressure sensor, 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-2026-000087893) never changes.

Identity and time

Publication numberOT-2026-000087893 · never reused
Internal UUID01a0ae9b-1aa5-74cf-a9e6-d54111a6b863 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087893
StatusPUBLIC

Content hashes

Canonical textba2b6359cd0f372cdc43741f1f61774136c58e88062a0e0fb0dbdc82988ad220
Markdowna1c81ac6e9f6b24adb36ac31ea28eebd02b9c8e76dbdc1985f3b751475742bdc
PDF
Publication page529de92662f4ac65a02288fd39cd0fe6c85b30dcb85e4893ef10bdd6c859e589
Manifest914e7bb9ec247e3a359d4649745bd7a8df85af30c3ffc8102b98a9d078bef425

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
SignaturemcMZDwRXv0BX/Dw+sNYJTNOZQXIWzs2RmUTjrqD+4/7vKeJBsArMkmaK8Ar+ot3N/r1OO3k4L7h38pv9njkkBQ==
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

2026-09-17T09:49:10.106233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087893
observed 529de92662f4ac65a02288fd39cd0fe6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.087958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087893/manifest.json
observed 914e7bb9ec247e3a359d4649745bd7a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.069003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087893/publication.md
observed a1c81ac6e9f6b24adb36ac31ea28eebd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:10.049116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087893/publication.txt
observed ba2b6359cd0f372cdc43741f1f617741...
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.