OpenTechnical

OT-2026-000090958

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, 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-2026-000090958) never changes.

Identity and time

Publication numberOT-2026-000090958 · never reused
Internal UUID01a0ae9c-c011-7305-a825-da95bf655290 · 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-2026-000090958
StatusPUBLIC

Content hashes

Canonical textce53bf4d0afbe61b38960392951859c3c94687d537b0b2a006d657320098521b
Markdown834ab1f583ebc04a2c624e76a5246cb6aa6acb5a78a83a0c9468b9128fb62e47
PDF
Publication page0704a7235b0d4b42828b73915c177ef3798f509545eded76fbd0ad519dbc2498
Manifest9ba2bdddc7dc8343cd007d0533ad506fc809459c1e48698c659b8e58d5ccaf87

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
SignaturegSbo+GT25RSkeBTmD8lBhoib/us3M+eJzlDGSmnUy6ncwrbdvIiU5SLj3F6lb2oMh7BQXnygJyuIR4p6VEjpBQ==
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

2026-09-17T09:44:10.840115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090958
observed 0704a7235b0d4b42828b73915c177ef3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.820930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090958/manifest.json
observed 9ba2bdddc7dc8343cd007d0533ad506f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.801565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090958/publication.md
observed 834ab1f583ebc04a2c624e76a5246cb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.782216ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090958/publication.txt
observed ce53bf4d0afbe61b38960392951859c3...
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.