OpenTechnical

OT-2026-000090629

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090629) never changes.

Identity and time

Publication numberOT-2026-000090629 · never reused
Internal UUID01a0ae9c-7f30-7f7f-a2a4-15672233f881 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090629
StatusPUBLIC

Content hashes

Canonical text24958c9a68588ed0480eb5f443fe8bda49a812e6289f630fa5e30437ecf2b242
Markdown85c1f34f19c9b582855f477a043ce51762b61eb0fe6973d409d5f8c88aec30a7
PDF
Publication page359d41fc3bd975260b8395787836cd80f60ad09d7f609c800e18ac6551f3b525
Manifest4c5c6117454e821ddf88619fc21cfff1c493e5a83aac1ae8c1ea0721f4f3ed0a

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
Signature1v0csO6qWEemjI0HLGcGbC//WjbzKpSmEa9mBFC2wNjIBgytAYyPh6h05lK/HEKLyt849uq+nfoecZ05wjWEAA==
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

2026-09-17T09:44:48.770042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090629
observed 359d41fc3bd975260b8395787836cd80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:48.752015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090629/manifest.json
observed 4c5c6117454e821ddf88619fc21cfff1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:48.734663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090629/publication.md
observed 85c1f34f19c9b582855f477a043ce517...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:48.716155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090629/publication.txt
observed 24958c9a68588ed0480eb5f443fe8bda...
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.