OpenTechnical

OT-2026-000090949

Publication integrity record

Two bellows 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-2026-000090949) never changes.

Identity and time

Publication numberOT-2026-000090949 · never reused
Internal UUID01a0ae9c-c011-7748-b3b3-164f2b5fcb43 · 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-2026-000090949
StatusPUBLIC

Content hashes

Canonical textbe8236578e0830f32987ce8e5b68d46fdb1f11d3ad007555c156a6cf64164f39
Markdown96c90e52a3f371cb119a80e1f54c6ef249379ff1d18dc32d4ffe202965099f39
PDF
Publication page0aa65f277c7b21a7d2f2093d1d9b92f0e3565322cd5870cf700e5d163ef328ab
Manifest246026befa1d7b92e16bebf52ea865225b7390c3dc19fc09d0c828da54cf28a4

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
SignatureITqFwHA12Dfg7fnDxL67oZhPP6zA0QB/US866a9NBrEH1Csev6LhezlO/OM66mVxYr3wY+k5jBtlxSKCfFLECw==
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

2026-09-17T09:44:10.166851ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090949
observed 0aa65f277c7b21a7d2f2093d1d9b92f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.150870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090949/manifest.json
observed 246026befa1d7b92e16bebf52ea86522...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.133292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090949/publication.md
observed 96c90e52a3f371cb119a80e1f54c6ef2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:10.114914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090949/publication.txt
observed be8236578e0830f32987ce8e5b68d46f...
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.