OpenTechnical

OT-2026-000090841

Publication integrity record

Four bellows cup vacuum gripper, four 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-2026-000090841) never changes.

Identity and time

Publication numberOT-2026-000090841 · never reused
Internal UUID01a0ae9c-c010-7e98-ad14-086a406d0bf4 · 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-2026-000090841
StatusPUBLIC

Content hashes

Canonical text04c705d6809ad8bbb18925549d1241f4054c0a1807cbf47b9937f5b4ee4d6b75
Markdown0372631b8cc223e44c0db45bc04b2879301ccbe9d9a9ea239522de30b4b86b4f
PDF
Publication page71029b4a82bf3231c21e7343b00e0766825a23bb563e5d77d53226c657a1c228
Manifestf442e72cd227cd4794fafd4ee9a75a12bee5e8b256b9671cae27b3734c677209

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
SignaturexTPriU2ultJR6y5io8AvTHW79+Pey0og4L20FXpUtd37rOhChvTH2a3xyrvEjaNunKuAdHBzTiC/buptkaHSDw==
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

2026-09-17T09:44:01.477371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090841
observed 71029b4a82bf3231c21e7343b00e0766...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:01.459168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090841/manifest.json
observed f442e72cd227cd4794fafd4ee9a75a12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:01.438436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090841/publication.md
observed 0372631b8cc223e44c0db45bc04b2879...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:01.419969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090841/publication.txt
observed 04c705d6809ad8bbb18925549d1241f4...
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.