OpenTechnical

OT-2026-000090885

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, two stage ejector, pressure sensor per zone, 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-2026-000090885) never changes.

Identity and time

Publication numberOT-2026-000090885 · never reused
Internal UUID01a0ae9c-c011-72c4-b19f-908aee1f30fc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090885
StatusPUBLIC

Content hashes

Canonical text79305f020a34cf403258e37b92cd85ec4c512cd6cb2d478566832ccb3d9b18ac
Markdown85d246528cd15f03ece2d212af26f943dac2eb05ee47e7d412758772bb80f874
PDF
Publication page99452f887d65ec20e44ee707b60d4ed067888a676b0e19a333b1534f3ef41e79
Manifest5ab0bdb0a4414d8d72b6242f0235df6e893583a166c073f00bf93689e042596f

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
SignatureePNOecOTvPyBXbcvKZGl9QQtgw4rMEYeT4BSGvuDAMb04IajQDDXrURN5S1t4rQzjjZoqnQ5mBwJ8HZ3rTL+CA==
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

2026-09-17T09:44:05.124789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090885
observed 99452f887d65ec20e44ee707b60d4ed0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.107618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090885/manifest.json
observed 5ab0bdb0a4414d8d72b6242f0235df6e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.090865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090885/publication.md
observed 85d246528cd15f03ece2d212af26f943...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:05.073554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090885/publication.txt
observed 79305f020a34cf403258e37b92cd85ec...
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.