OpenTechnical

OT-2026-000075564

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, supply line pressure sensor, vented 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-2026-000075564) never changes.

Identity and time

Publication numberOT-2026-000075564 · never reused
Internal UUID01a0ae94-29fc-7e3d-9c11-6b64e3476b40 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075564
StatusPUBLIC

Content hashes

Canonical textbf5d676abc1e5474645ae6727b4ae5e2eb1aa5db950d923a31cc45a1c0483315
Markdown7f9951f62e550fdd7c9b438f1a2d043988a044d90d80d2654580e6166f75eba9
PDF
Publication paged0af1ced82505675be3046202b97be0e9bb662d939ced7fc4fb82738ebb5b102
Manifestba215018cd9855ff1a5d80e94b93efba5a1ac1ce2f7cf539485b32f0002c2fa8

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
Signature+Axz31XZQamLb/NFRh3vq7RAfhuPHOmQ6FZil1tzelhA1q0uGpf2ExcCeNTDQ305ixNsPO41Vf4Az++Y5V+EAA==
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

2026-09-17T10:13:09.057969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075564
observed d0af1ced82505675be3046202b97be0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:09.036964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075564/manifest.json
observed ba215018cd9855ff1a5d80e94b93efba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:09.014055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075564/publication.md
observed 7f9951f62e550fdd7c9b438f1a2d0439...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:08.996202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075564/publication.txt
observed bf5d676abc1e5474645ae6727b4ae5e2...
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.